chore: Update discovery artifacts (#1486)

## Deleted keys were detected in the following stable discovery artifacts:
displayvideo v1 https://github.com/googleapis/google-api-python-client/commit/21f81c824089d0060dbd624f9755eea554464af2
sts v1 https://github.com/googleapis/google-api-python-client/commit/a8ebc2bef5d0ff6c449d65fcc9c0554c1f388985

## Deleted keys were detected in the following pre-stable discovery artifacts:
networkconnectivity v1alpha1 https://github.com/googleapis/google-api-python-client/commit/68588ad4744aa3c7a3a0afa12a1566f54ab3be94

## Discovery Artifact Change Summary:
feat(apigee): update the api https://github.com/googleapis/google-api-python-client/commit/41ae79b3554ffc9f1622e44757751009eeed76f8
feat(bigqueryreservation): update the api https://github.com/googleapis/google-api-python-client/commit/b0483aba20b17580b400283fb0073f07715bf254
feat(chat): update the api https://github.com/googleapis/google-api-python-client/commit/270312294f1cf89041825b0f31bfcf872fda9854
feat(cloudbuild): update the api https://github.com/googleapis/google-api-python-client/commit/30c122278e75a99b5b2a6ed330f317015134a23d
feat(cloudscheduler): update the api https://github.com/googleapis/google-api-python-client/commit/0405b1db79fe87305be25ba4f9389e94490040a7
feat(contactcenterinsights): update the api https://github.com/googleapis/google-api-python-client/commit/3abcf5334053f5612fd79163f2c433e5793ee782
feat(dialogflow): update the api https://github.com/googleapis/google-api-python-client/commit/c4935840495b1487d4be47b63f6c416113b9413f
feat(displayvideo): update the api https://github.com/googleapis/google-api-python-client/commit/21f81c824089d0060dbd624f9755eea554464af2
feat(monitoring): update the api https://github.com/googleapis/google-api-python-client/commit/d997b2c0d13203ac29b55c19858ef375380a5b7b
feat(networkconnectivity): update the api https://github.com/googleapis/google-api-python-client/commit/68588ad4744aa3c7a3a0afa12a1566f54ab3be94
feat(notebooks): update the api https://github.com/googleapis/google-api-python-client/commit/b975c34568f62bbf19f67f4731fe091aeeda8a75
feat(retail): update the api https://github.com/googleapis/google-api-python-client/commit/c2bcb7081a4f656b9e136ea38637cf262b60f387
feat(servicenetworking): update the api https://github.com/googleapis/google-api-python-client/commit/3bdc7b9d0854918ef65ccb4a3798d2f3f3b19d70
feat(sts): update the api https://github.com/googleapis/google-api-python-client/commit/a8ebc2bef5d0ff6c449d65fcc9c0554c1f388985
diff --git a/docs/dyn/cloudfunctions_v1.projects.locations.functions.html b/docs/dyn/cloudfunctions_v1.projects.locations.functions.html
index 3c7682a..2cca722 100644
--- a/docs/dyn/cloudfunctions_v1.projects.locations.functions.html
+++ b/docs/dyn/cloudfunctions_v1.projects.locations.functions.html
@@ -217,7 +217,7 @@
     "url": "A String", # The URL pointing to the hosted repository where the function is defined. There are supported Cloud Source Repository URLs in the following formats: To refer to a specific commit: `https://source.developers.google.com/projects/*/repos/*/revisions/*/paths/*` To refer to a moveable alias (branch): `https://source.developers.google.com/projects/*/repos/*/moveable-aliases/*/paths/*` In particular, to refer to HEAD use `master` moveable alias. To refer to a specific fixed alias (tag): `https://source.developers.google.com/projects/*/repos/*/fixed-aliases/*/paths/*` You may omit `paths/*` if you want to use the main directory.
   },
   "sourceToken": "A String", # Input only. An identifier for Firebase function sources. Disclaimer: This field is only supported for Firebase function deployments.
-  "sourceUploadUrl": "A String", # The Google Cloud Storage signed URL used for source uploading, generated by google.cloud.functions.v1.GenerateUploadUrl
+  "sourceUploadUrl": "A String", # The Google Cloud Storage signed URL used for source uploading, generated by calling [google.cloud.functions.v1.GenerateUploadUrl]. The signature is validated on write methods {Create, Update} The signature is stripped from the Function object on read methods {Get, List}
   "status": "A String", # Output only. Status of the function deployment.
   "timeout": "A String", # The function execution timeout. Execution is considered failed and can be terminated if the function is not completed at the end of the timeout period. Defaults to 60 seconds.
   "updateTime": "A String", # Output only. The last update timestamp of a Cloud Function.
@@ -416,7 +416,7 @@
     "url": "A String", # The URL pointing to the hosted repository where the function is defined. There are supported Cloud Source Repository URLs in the following formats: To refer to a specific commit: `https://source.developers.google.com/projects/*/repos/*/revisions/*/paths/*` To refer to a moveable alias (branch): `https://source.developers.google.com/projects/*/repos/*/moveable-aliases/*/paths/*` In particular, to refer to HEAD use `master` moveable alias. To refer to a specific fixed alias (tag): `https://source.developers.google.com/projects/*/repos/*/fixed-aliases/*/paths/*` You may omit `paths/*` if you want to use the main directory.
   },
   "sourceToken": "A String", # Input only. An identifier for Firebase function sources. Disclaimer: This field is only supported for Firebase function deployments.
-  "sourceUploadUrl": "A String", # The Google Cloud Storage signed URL used for source uploading, generated by google.cloud.functions.v1.GenerateUploadUrl
+  "sourceUploadUrl": "A String", # The Google Cloud Storage signed URL used for source uploading, generated by calling [google.cloud.functions.v1.GenerateUploadUrl]. The signature is validated on write methods {Create, Update} The signature is stripped from the Function object on read methods {Get, List}
   "status": "A String", # Output only. Status of the function deployment.
   "timeout": "A String", # The function execution timeout. Execution is considered failed and can be terminated if the function is not completed at the end of the timeout period. Defaults to 60 seconds.
   "updateTime": "A String", # Output only. The last update timestamp of a Cloud Function.
@@ -553,7 +553,7 @@
         "url": "A String", # The URL pointing to the hosted repository where the function is defined. There are supported Cloud Source Repository URLs in the following formats: To refer to a specific commit: `https://source.developers.google.com/projects/*/repos/*/revisions/*/paths/*` To refer to a moveable alias (branch): `https://source.developers.google.com/projects/*/repos/*/moveable-aliases/*/paths/*` In particular, to refer to HEAD use `master` moveable alias. To refer to a specific fixed alias (tag): `https://source.developers.google.com/projects/*/repos/*/fixed-aliases/*/paths/*` You may omit `paths/*` if you want to use the main directory.
       },
       "sourceToken": "A String", # Input only. An identifier for Firebase function sources. Disclaimer: This field is only supported for Firebase function deployments.
-      "sourceUploadUrl": "A String", # The Google Cloud Storage signed URL used for source uploading, generated by google.cloud.functions.v1.GenerateUploadUrl
+      "sourceUploadUrl": "A String", # The Google Cloud Storage signed URL used for source uploading, generated by calling [google.cloud.functions.v1.GenerateUploadUrl]. The signature is validated on write methods {Create, Update} The signature is stripped from the Function object on read methods {Get, List}
       "status": "A String", # Output only. Status of the function deployment.
       "timeout": "A String", # The function execution timeout. Execution is considered failed and can be terminated if the function is not completed at the end of the timeout period. Defaults to 60 seconds.
       "updateTime": "A String", # Output only. The last update timestamp of a Cloud Function.
@@ -653,7 +653,7 @@
     "url": "A String", # The URL pointing to the hosted repository where the function is defined. There are supported Cloud Source Repository URLs in the following formats: To refer to a specific commit: `https://source.developers.google.com/projects/*/repos/*/revisions/*/paths/*` To refer to a moveable alias (branch): `https://source.developers.google.com/projects/*/repos/*/moveable-aliases/*/paths/*` In particular, to refer to HEAD use `master` moveable alias. To refer to a specific fixed alias (tag): `https://source.developers.google.com/projects/*/repos/*/fixed-aliases/*/paths/*` You may omit `paths/*` if you want to use the main directory.
   },
   "sourceToken": "A String", # Input only. An identifier for Firebase function sources. Disclaimer: This field is only supported for Firebase function deployments.
-  "sourceUploadUrl": "A String", # The Google Cloud Storage signed URL used for source uploading, generated by google.cloud.functions.v1.GenerateUploadUrl
+  "sourceUploadUrl": "A String", # The Google Cloud Storage signed URL used for source uploading, generated by calling [google.cloud.functions.v1.GenerateUploadUrl]. The signature is validated on write methods {Create, Update} The signature is stripped from the Function object on read methods {Get, List}
   "status": "A String", # Output only. Status of the function deployment.
   "timeout": "A String", # The function execution timeout. Execution is considered failed and can be terminated if the function is not completed at the end of the timeout period. Defaults to 60 seconds.
   "updateTime": "A String", # Output only. The last update timestamp of a Cloud Function.