chore(all): auto-regenerate .pb.go files (googleapis#680)

This is an auto-generated regeneration of the .pb.go files by
cloud.google.com/go/internal/gapicgen. Once this PR is submitted, genbot will
update the corresponding PR to depend on the newer version of go-genproto, and
assign reviewers. Whilst this or any regen PR is open in go-genproto, genbot
will not create any more regeneration PRs. If all regen PRs are closed,
gapicgen will create a new set of regeneration PRs once per night.

If you have been assigned to review this PR, please:

- Ensure that CI is passing. If it's failing, it requires your manual attention.
- Approve and submit this PR if you believe it's ready to ship. That will prompt
genbot to assign reviewers to the google-cloud-go PR.

Corresponding google-cloud-go PR: googleapis/google-cloud-go#4780

Changes:

Synchronize new proto/yaml changes.
  PiperOrigin-RevId: 397872721
  Source-Link: googleapis/googleapis@810074f

chore(accesscontextmanager): Embed accesscontextmanager/type types into the accesscontextmanager/v1 client
  PiperOrigin-RevId: 397860208
  Source-Link: googleapis/googleapis@835a0e0

chore(networksecurity): Configure Ruby GAPIC generator parameters for networksecurity v1beta1 and identitytoolkit v2
  PiperOrigin-RevId: 397826566
  Source-Link: googleapis/googleapis@6d969eb

feat(speech): add output_config request field
  Committer: @cherba
  PiperOrigin-RevId: 397621106
  Source-Link: googleapis/googleapis@1872f45

chore(bazel): update rules_gapic to v0.6.3
  PiperOrigin-RevId: 397413593
  Source-Link: googleapis/googleapis@7c4eb0b

chore(bigquery/connection): update gapic-generator-csharp to 1.3.8
  Committer: @virost
  PiperOrigin-RevId: 397402402
  Source-Link: googleapis/googleapis@abed0ad

chore(privatecatalog): enable python snippetgen for privatecatalog
  Committer: @busunkim96
  PiperOrigin-RevId: 397369926
  Source-Link: googleapis/googleapis@83728bb

chore: regenerate API index

  Source-Link: googleapis/googleapis@ab61c52

feat(bigquery/storage): add BigQuery Storage Write API v1
  Committer: @yirutang
  PiperOrigin-RevId: 397350004
  Source-Link: googleapis/googleapis@b4da4fd

chore: regenerate API index

  Source-Link: googleapis/googleapis@ddf396f

feat: assuredworkloads v1 public protos
  Committer: @alexander-fenster
  PiperOrigin-RevId: 397207401
  Source-Link: googleapis/googleapis@b201fa0