Merge branch 'stable-3.14'

* stable-3.14:
  Discovery OAuth: Validate discovery config and add tests
  Discovery OAuth: support generic OAuth via well-known discovery URL
  Bump scribejava to 8.3.3 and jackson to 2.21.1

Change-Id: I9f8bed23c9ad1e6507a167c74d7d982575c328bc