Merge branch 'stable-3.0' into stable-3.1

* stable-3.0:
  Update log4j2 version to 2.17.0
  Update log4j2 version to 2.16.0 to fix CVE-2021-44228
  Update JGit dependency to align with core's version

Change-Id: Ibabc46731db7b2731682f79fbd4773fc5a25f8dd
tree: f082aa389fdff113bdd20398f67f6c4efbb6511b
  1. .settings/
  2. bin/
  3. src/
  4. .gitignore
  5. BUILD
  6. external_plugin_deps.bzl
  7. LICENSE