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

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#4383

Changes:

chore: regenerate API index

  Source-Link: googleapis/googleapis@220316c

chore: Remove protos for googleads v4 and v5, which have sunset
  Committer: @aohren
  PiperOrigin-RevId: 383376485
  Source-Link: googleapis/googleapis@78978f6

chore: Update datafusion v1 BUILD.bazel for python
  PiperOrigin-RevId: 382891238
  Source-Link: googleapis/googleapis@ac5d013

feat: Publish Notification Service logging proto for documentation
  PiperOrigin-RevId: 382838994
  Source-Link: googleapis/googleapis@2b6185d

chore: release gapic-generator-java v1.0.16
  Committer: @miraleung
  PiperOrigin-RevId: 382806066
  Source-Link: googleapis/googleapis@8bdca74

regen.txt

@@ -1 +1 @@
-03a0afcd7e2118d89e02ddc04bcf1a6e9e4b583d
+220316cd3712a5f6ba89c4fa0c4968366d57232f