chore: Update discovery artifacts (#1195)

* chore(accesscontextmanager): update the api
* chore(adexchangebuyer2): update the api
* chore(admin): update the api
* chore(alertcenter): update the api
* chore(analyticsadmin): update the api
* chore(analyticsdata): update the api
* chore(androidmanagement): update the api
* chore(apigateway): update the api
* chore(apigee): update the api
* chore(appengine): update the api
* chore(area120tables): update the api
* chore(artifactregistry): update the api
* chore(bigquery): update the api
* chore(bigqueryconnection): update the api
* chore(bigqueryreservation): update the api
* chore(billingbudgets): update the api
* chore(binaryauthorization): update the api
* chore(blogger): update the api
* chore(calendar): update the api
* chore(chat): update the api
* chore(cloudasset): update the api
* chore(cloudbuild): update the api
* chore(cloudfunctions): update the api
* chore(cloudidentity): update the api
* chore(cloudkms): update the api
* chore(cloudresourcemanager): update the api
* chore(cloudscheduler): update the api
* chore(cloudtasks): update the api
* chore(composer): update the api
* chore(compute): update the api
* chore(container): update the api
* chore(containeranalysis): update the api
* chore(content): update the api
* chore(datacatalog): update the api
* chore(dataflow): update the api
* chore(datafusion): update the api
* chore(datamigration): update the api
* chore(dataproc): update the api
* chore(deploymentmanager): update the api
* chore(dialogflow): update the api
* chore(displayvideo): update the api
* chore(dlp): update the api
* chore(dns): update the api
* chore(documentai): update the api
* chore(eventarc): update the api
* chore(file): update the api
* chore(firebaseml): update the api
* chore(games): update the api
* chore(gameservices): update the api
* chore(genomics): update the api
* chore(healthcare): update the api
* chore(homegraph): update the api
* chore(iam): update the api
* chore(iap): update the api
* chore(jobs): update the api
* chore(lifesciences): update the api
* chore(localservices): 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(notebooks): update the api
* chore(osconfig): update the api
* chore(pagespeedonline): update the api
* chore(people): 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(recommender): update the api
* chore(remotebuildexecution): update the api
* chore(reseller): update the api
* chore(run): update the api
* chore(safebrowsing): update the api
* chore(sasportal): update the api
* chore(searchconsole): update the api
* chore(secretmanager): update the api
* chore(securitycenter): update the api
* chore(serviceconsumermanagement): update the api
* chore(servicecontrol): update the api
* chore(servicenetworking): update the api
* chore(serviceusage): update the api
* chore(sheets): update the api
* chore(slides): update the api
* chore(spanner): update the api
* chore(speech): update the api
* chore(sqladmin): update the api
* chore(storage): update the api
* chore(storagetransfer): update the api
* chore(sts): update the api
* chore(tagmanager): update the api
* chore(testing): update the api
* chore(toolresults): update the api
* chore(transcoder): update the api
* chore(vectortile): update the api
* chore(videointelligence): update the api
* chore(vision): update the api
* chore(webmasters): update the api
* chore(workflowexecutions): update the api
* chore(youtube): update the api
diff --git a/docs/dyn/youtube_v3.subscriptions.html b/docs/dyn/youtube_v3.subscriptions.html
index e6674f0..ff13d7f 100644
--- a/docs/dyn/youtube_v3.subscriptions.html
+++ b/docs/dyn/youtube_v3.subscriptions.html
@@ -130,7 +130,7 @@
     "channelId": "A String", # The ID that YouTube uses to uniquely identify the subscriber's channel.
     "channelTitle": "A String", # Channel title for the channel that the subscription belongs to.
     "description": "A String", # The subscription's details.
-    "publishedAt": "A String", # The date and time that the subscription was created. The value is specified in ISO 8601 format.
+    "publishedAt": "A String", # The date and time that the subscription was created.
     "resourceId": { # A resource id is a generic reference that points to another YouTube resource. # The id object contains information about the channel that the user subscribed to.
       "channelId": "A String", # The ID that YouTube uses to uniquely identify the referred resource, if that resource is a channel. This property is only present if the resourceId.kind value is youtube#channel.
       "kind": "A String", # The type of the API resource.
@@ -221,7 +221,7 @@
     "channelId": "A String", # The ID that YouTube uses to uniquely identify the subscriber's channel.
     "channelTitle": "A String", # Channel title for the channel that the subscription belongs to.
     "description": "A String", # The subscription's details.
-    "publishedAt": "A String", # The date and time that the subscription was created. The value is specified in ISO 8601 format.
+    "publishedAt": "A String", # The date and time that the subscription was created.
     "resourceId": { # A resource id is a generic reference that points to another YouTube resource. # The id object contains information about the channel that the user subscribed to.
       "channelId": "A String", # The ID that YouTube uses to uniquely identify the referred resource, if that resource is a channel. This property is only present if the resourceId.kind value is youtube#channel.
       "kind": "A String", # The type of the API resource.
@@ -339,7 +339,7 @@
         "channelId": "A String", # The ID that YouTube uses to uniquely identify the subscriber's channel.
         "channelTitle": "A String", # Channel title for the channel that the subscription belongs to.
         "description": "A String", # The subscription's details.
-        "publishedAt": "A String", # The date and time that the subscription was created. The value is specified in ISO 8601 format.
+        "publishedAt": "A String", # The date and time that the subscription was created.
         "resourceId": { # A resource id is a generic reference that points to another YouTube resource. # The id object contains information about the channel that the user subscribed to.
           "channelId": "A String", # The ID that YouTube uses to uniquely identify the referred resource, if that resource is a channel. This property is only present if the resourceId.kind value is youtube#channel.
           "kind": "A String", # The type of the API resource.