chore(all): auto-regenerate .pb.go files (googleapis#807)

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.

There is no corresponding google-cloud-go PR.

Changes:

Synchronize new proto/yaml changes.
  PiperOrigin-RevId: 446264416
  Source-Link: googleapis/googleapis@3a976a3

chore(accessapproval): include java generated samples
  testing recent changes in gapic-generator-java 2.7.0 to write generated samples to files
  Source-Link: googleapis/googleapis@0bfcb46

regen.txt

@@ -1 +1 @@
-dc4ef314fecf1b00833e78288cf2eb4d2b165ad1
+3a976a38edfb67cff5432cd2bfe1edf7746822b5