chore(all): auto-regenerate .pb.go files (#524)

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#3642

Changes:

feat(osconfig/agentendpoint): add ApplyConfigTask to AgentEndpoint API
  PiperOrigin-RevId: 354960512
  Source-Link: googleapis/googleapis@e7c74bb

feat:Publish Cloud OrgPolicy v2 API
  PiperOrigin-RevId: 354948879
  Source-Link: googleapis/googleapis@e195c9c

chore(longrunning): update proto license & README
  PiperOrigin-RevId: 354843760
  Source-Link: googleapis/googleapis@d7419a1

fix(locations): add service yaml, BUILD.bazel, and update proto
  PiperOrigin-RevId: 354631133
  Source-Link: googleapis/googleapis@aa23780

regen.txt

@@ -1 +1 @@
-aa237807490eae6d67ffc0ac42a63f93bf7e2d23
+e7c74bbf8c352b9dec45dac2d4b7fb894d92f3b8