Merge branch '8-11-4-changelog-ee' into 'master'

Remove (unreleased) for 8.11.3



See merge request !703

CHANGELOG-EE

 Please view this file on the master branch, on stable branches it's out of date.
 v 8.12.0 (Unreleased)
 
-v 8.11.3 (Unreleased)
+v 8.11.3
   - [ES] Add logging to indexer
   - Fix missing EE-specific service parameters for Jenkins CI
   - Set the correct `GL_PROTOCOL` when rebasing !691