chore: Update discovery artifacts (#1523)

## Deleted keys were detected in the following stable discovery artifacts:
displayvideo v1 https://github.com/googleapis/google-api-python-client/commit/22caa4f2f8ecb0f0ad6cfac547f9deb76fdcbebb
memcache v1 https://github.com/googleapis/google-api-python-client/commit/393dce7a3e584ad6be58c832ec826fe3b44e353b

## Deleted keys were detected in the following pre-stable discovery artifacts:
memcache v1beta2 https://github.com/googleapis/google-api-python-client/commit/393dce7a3e584ad6be58c832ec826fe3b44e353b

## Discovery Artifact Change Summary:
feat(apigee): update the api https://github.com/googleapis/google-api-python-client/commit/0e4fed7f1e08a616cbc81243c24391bc20ce5edb
feat(bigquery): update the api https://github.com/googleapis/google-api-python-client/commit/04e112ce89d6ddb3aeaae889c2de36070d6c2814
feat(bigtableadmin): update the api https://github.com/googleapis/google-api-python-client/commit/6b77931c3c9aba59d5b326c570a2080252c8beb1
feat(cloudprofiler): update the api https://github.com/googleapis/google-api-python-client/commit/3009ee3c238ae1fa51c529e9f187ec26693138a4
feat(container): update the api https://github.com/googleapis/google-api-python-client/commit/e5d01ecee51da0c7a2543b833a1395a94c27bef6
feat(dataproc): update the api https://github.com/googleapis/google-api-python-client/commit/fec73562a93b5a532bce6c91f0d30ec4fbd54ddb
feat(displayvideo): update the api https://github.com/googleapis/google-api-python-client/commit/22caa4f2f8ecb0f0ad6cfac547f9deb76fdcbebb
feat(documentai): update the api https://github.com/googleapis/google-api-python-client/commit/444836b9afe8d3eb8d52a1431652bfda1ad3288b
feat(healthcare): update the api https://github.com/googleapis/google-api-python-client/commit/2f3173aa4b4d154c909eea853a0c4c306834e0ab
feat(ideahub): update the api https://github.com/googleapis/google-api-python-client/commit/8ebf9d2bd419561d5eacb78823aa1fc519fe2710
feat(memcache): update the api https://github.com/googleapis/google-api-python-client/commit/393dce7a3e584ad6be58c832ec826fe3b44e353b
feat(mybusinesslodging): update the api https://github.com/googleapis/google-api-python-client/commit/c51a0d15e634c2ab1c7762533f33d59f10b01875
feat(speech): update the api https://github.com/googleapis/google-api-python-client/commit/bf6e86f6ee8c3985e1ce6f0475ef4f8685b52060
feat(streetviewpublish): update the api https://github.com/googleapis/google-api-python-client/commit/c8cf30cd67f5588d7cbe60631e42f0a49ea6c307
feat(youtube): update the api https://github.com/googleapis/google-api-python-client/commit/855cbfea1f6d46af07c4b80ab26fc30ca46370b7
diff --git a/docs/dyn/cloudidentity_v1.groups.html b/docs/dyn/cloudidentity_v1.groups.html
index ee87ee5..8ea66c5 100644
--- a/docs/dyn/cloudidentity_v1.groups.html
+++ b/docs/dyn/cloudidentity_v1.groups.html
@@ -389,7 +389,7 @@
   "updateTime": "A String", # Output only. The time when the `Group` was last updated.
 }
 
-  updateMask: string, Required. The names of fields to update. May only contain the following fields: `display_name`, `description`, `labels`.
+  updateMask: string, Required. The names of fields to update. May only contain the following field names: `display_name`, `description`, `labels`.
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format