Merge branch 'stable-5.12'

* stable-5.12:
  Prepare 5.12.1-SNAPSHOT builds
  EGit Mylyn Github Connector v5.12.0.202106070339-r
  [license-check] Update list of project dependencies
  Update jetty to 9.4.41.v20210516

Change-Id: I53de352886ed10d903ce4365cd486285137cbe5f
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>