chore: Update discovery artifacts (#1291)

* chore: update docs/dyn/index.md
* chore(abusiveexperiencereport): update the api
* chore(acceleratedmobilepageurl): update the api
* chore(accessapproval): update the api
* chore(accesscontextmanager): update the api
* chore(adexchangebuyer2): update the api
* chore(adexperiencereport): update the api
* chore(admob): update the api
* chore(analytics): update the api
* chore(analyticsreporting): update the api
* chore(androiddeviceprovisioning): update the api
* chore(androidenterprise): update the api
* chore(androidpublisher): update the api
* chore(apigateway): update the api
* chore(artifactregistry): update the api
* chore(bigqueryconnection): update the api
* chore(bigquerydatatransfer): update the api
* chore(billingbudgets): update the api
* chore(binaryauthorization): update the api
* chore(blogger): update the api
* chore(books): update the api
* chore(calendar): update the api
* chore(chat): update the api
* chore(chromeuxreport): update the api
* chore(civicinfo): update the api
* chore(classroom): update the api
* chore(cloudbilling): update the api
* chore(cloudbuild): update the api
* chore(clouddebugger): update the api
* chore(clouderrorreporting): update the api
* chore(cloudfunctions): update the api
* chore(cloudidentity): update the api
* chore(cloudiot): update the api
* chore(cloudkms): update the api
* chore(cloudprofiler): update the api
* chore(cloudresourcemanager): update the api
* chore(cloudscheduler): update the api
* chore(cloudshell): update the api
* chore(cloudtasks): update the api
* chore(cloudtrace): update the api
* chore(composer): update the api
* chore(containeranalysis): update the api
* chore(content): update the api
* chore(customsearch): update the api
* chore(datacatalog): update the api
* chore(datafusion): update the api
* chore(datamigration): update the api
* chore(datastore): update the api
* chore(deploymentmanager): update the api
* chore(digitalassetlinks): update the api
* chore(displayvideo): update the api
* chore(dlp): update the api
* chore(dns): update the api
* chore(docs): update the api
* chore(domains): update the api
* chore(domainsrdap): update the api
* chore(doubleclickbidmanager): update the api
* chore(doubleclicksearch): update the api
* chore(drive): update the api
* chore(driveactivity): update the api
* chore(eventarc): update the api
* chore(factchecktools): update the api
* chore(fcm): update the api
* chore(file): update the api
* chore(firebase): update the api
* chore(firebasedatabase): update the api
* chore(firebasedynamiclinks): update the api
* chore(firebasehosting): update the api
* chore(firebaseml): update the api
* chore(firebaserules): update the api
* chore(firestore): update the api
* chore(fitness): update the api
* chore(gamesConfiguration): update the api
* chore(gamesManagement): update the api
* chore(gameservices): update the api
* chore(genomics): update the api
* chore(gmail): update the api
* chore(gmailpostmastertools): update the api
* chore(groupsmigration): update the api
* chore(groupssettings): update the api
* chore(healthcare): update the api
* chore(iam): update the api
* chore(iamcredentials): update the api
* chore(iap): update the api
* chore(identitytoolkit): update the api
* chore(indexing): update the api
* chore(jobs): update the api
* chore(kgsearch): update the api
* chore(language): update the api
* chore(libraryagent): update the api
* chore(licensing): update the api
* chore(lifesciences): update the api
* chore(logging): update the api
* chore(managedidentities): update the api
* chore(manufacturers): update the api
* chore(memcache): update the api
* chore(ml): update the api
* chore(monitoring): update the api
* chore(networkmanagement): update the api
* chore(osconfig): update the api
* chore(pagespeedonline): update the api
* chore(playablelocations): update the api
* chore(playcustomapp): update the api
* chore(policytroubleshooter): update the api
* chore(poly): update the api
* chore(privateca): update the api
* chore(prod_tt_sasportal): update the api
* chore(pubsub): update the api
* chore(pubsublite): update the api
* chore(realtimebidding): update the api
* chore(recommendationengine): update the api
* chore(recommender): update the api
* chore(redis): update the api
* chore(remotebuildexecution): update the api
* chore(reseller): update the api
* chore(runtimeconfig): update the api
* chore(safebrowsing): update the api
* chore(sasportal): update the api
* chore(script): update the api
* chore(searchconsole): update the api
* chore(secretmanager): update the api
* chore(servicecontrol): update the api
* chore(servicedirectory): update the api
* chore(siteVerification): update the api
* chore(slides): update the api
* chore(smartdevicemanagement): update the api
* chore(sourcerepo): update the api
* chore(sqladmin): update the api
* chore(storage): update the api
* chore(storagetransfer): update the api
* chore(streetviewpublish): update the api
* chore(sts): update the api
* chore(tagmanager): update the api
* chore(tasks): update the api
* chore(testing): update the api
* chore(texttospeech): update the api
* chore(toolresults): update the api
* chore(trafficdirector): update the api
* chore(transcoder): update the api
* chore(translate): update the api
* chore(vault): update the api
* chore(vectortile): update the api
* chore(verifiedaccess): update the api
* chore(videointelligence): update the api
* chore(vision): update the api
* chore(webfonts): update the api
* chore(webmasters): update the api
* chore(websecurityscanner): update the api
* chore(workflowexecutions): update the api
* chore(workflows): update the api
* chore(youtubeAnalytics): update the api
* chore(youtubereporting): update the api
* chore(docs): Add new discovery artifacts and reference documents
diff --git a/docs/dyn/composer_v1.projects.locations.environments.html b/docs/dyn/composer_v1.projects.locations.environments.html
index 977dbcb..ea51143 100644
--- a/docs/dyn/composer_v1.projects.locations.environments.html
+++ b/docs/dyn/composer_v1.projects.locations.environments.html
@@ -165,7 +165,7 @@
       "pypiPackages": { # Optional. Custom Python Package Index (PyPI) packages to be installed in the environment. Keys refer to the lowercase package name such as "numpy" and values are the lowercase extras and version specifier such as "==1.12.0", "[devel,gcp_api]", or "[devel]>=1.8.2, <1.9.2". To specify a package without pinning it to a version specifier, use the empty string as the value.
         "a_key": "A String",
       },
-      "pythonVersion": "A String", # Optional. The major version of Python used to run the Apache Airflow scheduler, worker, and webserver processes. Can be set to '2' or '3'. If not specified, the default is '2'. Cannot be updated.
+      "pythonVersion": "A String", # Optional. The major version of Python used to run the Apache Airflow scheduler, worker, and webserver processes. Can be set to '2' or '3'. If not specified, the default is '3'. Cannot be updated.
     },
     "webServerConfig": { # The configuration settings for the Airflow web server App Engine instance. # Optional. The configuration settings for the Airflow web server App Engine instance.
       "machineType": "A String", # Optional. Machine type on which Airflow web server is running. It has to be one of: composer-n1-webserver-2, composer-n1-webserver-4 or composer-n1-webserver-8. If not specified, composer-n1-webserver-2 will be used. Value custom is returned only in response, if Airflow web server parameters were manually changed to a non-standard values.
@@ -322,7 +322,7 @@
       "pypiPackages": { # Optional. Custom Python Package Index (PyPI) packages to be installed in the environment. Keys refer to the lowercase package name such as "numpy" and values are the lowercase extras and version specifier such as "==1.12.0", "[devel,gcp_api]", or "[devel]>=1.8.2, <1.9.2". To specify a package without pinning it to a version specifier, use the empty string as the value.
         "a_key": "A String",
       },
-      "pythonVersion": "A String", # Optional. The major version of Python used to run the Apache Airflow scheduler, worker, and webserver processes. Can be set to '2' or '3'. If not specified, the default is '2'. Cannot be updated.
+      "pythonVersion": "A String", # Optional. The major version of Python used to run the Apache Airflow scheduler, worker, and webserver processes. Can be set to '2' or '3'. If not specified, the default is '3'. Cannot be updated.
     },
     "webServerConfig": { # The configuration settings for the Airflow web server App Engine instance. # Optional. The configuration settings for the Airflow web server App Engine instance.
       "machineType": "A String", # Optional. Machine type on which Airflow web server is running. It has to be one of: composer-n1-webserver-2, composer-n1-webserver-4 or composer-n1-webserver-8. If not specified, composer-n1-webserver-2 will be used. Value custom is returned only in response, if Airflow web server parameters were manually changed to a non-standard values.
@@ -420,7 +420,7 @@
           "pypiPackages": { # Optional. Custom Python Package Index (PyPI) packages to be installed in the environment. Keys refer to the lowercase package name such as "numpy" and values are the lowercase extras and version specifier such as "==1.12.0", "[devel,gcp_api]", or "[devel]>=1.8.2, <1.9.2". To specify a package without pinning it to a version specifier, use the empty string as the value.
             "a_key": "A String",
           },
-          "pythonVersion": "A String", # Optional. The major version of Python used to run the Apache Airflow scheduler, worker, and webserver processes. Can be set to '2' or '3'. If not specified, the default is '2'. Cannot be updated.
+          "pythonVersion": "A String", # Optional. The major version of Python used to run the Apache Airflow scheduler, worker, and webserver processes. Can be set to '2' or '3'. If not specified, the default is '3'. Cannot be updated.
         },
         "webServerConfig": { # The configuration settings for the Airflow web server App Engine instance. # Optional. The configuration settings for the Airflow web server App Engine instance.
           "machineType": "A String", # Optional. Machine type on which Airflow web server is running. It has to be one of: composer-n1-webserver-2, composer-n1-webserver-4 or composer-n1-webserver-8. If not specified, composer-n1-webserver-2 will be used. Value custom is returned only in response, if Airflow web server parameters were manually changed to a non-standard values.
@@ -526,7 +526,7 @@
       "pypiPackages": { # Optional. Custom Python Package Index (PyPI) packages to be installed in the environment. Keys refer to the lowercase package name such as "numpy" and values are the lowercase extras and version specifier such as "==1.12.0", "[devel,gcp_api]", or "[devel]>=1.8.2, <1.9.2". To specify a package without pinning it to a version specifier, use the empty string as the value.
         "a_key": "A String",
       },
-      "pythonVersion": "A String", # Optional. The major version of Python used to run the Apache Airflow scheduler, worker, and webserver processes. Can be set to '2' or '3'. If not specified, the default is '2'. Cannot be updated.
+      "pythonVersion": "A String", # Optional. The major version of Python used to run the Apache Airflow scheduler, worker, and webserver processes. Can be set to '2' or '3'. If not specified, the default is '3'. Cannot be updated.
     },
     "webServerConfig": { # The configuration settings for the Airflow web server App Engine instance. # Optional. The configuration settings for the Airflow web server App Engine instance.
       "machineType": "A String", # Optional. Machine type on which Airflow web server is running. It has to be one of: composer-n1-webserver-2, composer-n1-webserver-4 or composer-n1-webserver-8. If not specified, composer-n1-webserver-2 will be used. Value custom is returned only in response, if Airflow web server parameters were manually changed to a non-standard values.