feat: update API sources and regenerate

[noahdietz]

Update API sources and regenerate.

Included googleapis CLs

google/bigtable/admin/v2

• http://cl/974526241

google/cloud/batch/v1

• http://cl/971929480

google/cloud/bigquery/migration/v2

• http://cl/972815378

google/cloud/confidentialcomputing/v1

• http://cl/974724387

google/cloud/geminidataanalytics/v1

• http://cl/972009061

google/cloud/geminidataanalytics/v1beta

• http://cl/973160977

google/developers/knowledge/v1

• http://cl/972199428

google/privacy/dlp/v2

• http://cl/972155109

[snippet-bot]

Here is the summary of changes.

You are about to add 5 region tags.

• google-cloud-dlp-v2/snippets/dlp_service/create_content_policy.rb:19, tag dlp_v2_generated_DlpService_CreateContentPolicy_sync
• google-cloud-dlp-v2/snippets/dlp_service/delete_content_policy.rb:19, tag dlp_v2_generated_DlpService_DeleteContentPolicy_sync
• google-cloud-dlp-v2/snippets/dlp_service/get_content_policy.rb:19, tag dlp_v2_generated_DlpService_GetContentPolicy_sync
• google-cloud-dlp-v2/snippets/dlp_service/list_content_policies.rb:19, tag dlp_v2_generated_DlpService_ListContentPolicies_sync
• google-cloud-dlp-v2/snippets/dlp_service/update_content_policy.rb:19, tag dlp_v2_generated_DlpService_UpdateContentPolicy_sync

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