Merge branch 'stable-3.14'

* stable-3.14:
  Improve documentation for auto-owners-approval
  Convert FilesOwnersResponse to a record
  Show auto-approved owner approvals in the UI
  Expose auto-approved files in the owners REST API
  Extract shared auto-owners-approved logic
  Swtich auto-owners-approved to a allowlist model
  Default auto-owners-approved to false

Change-Id: If71c81eed1a825138652aa72883d1080d5f80ada