Merge branch 'stable-5.3' into stable-5.4

* stable-5.3:
  Prepare 5.3.8-SNAPSHOT builds
  JGit v5.3.7.202002110540-r
  Prepare 5.1.14-SNAPSHOT builds
  JGit v5.1.13.202002110435-r

Change-Id: I075f8b8f97a5e97602c058770fe12164af2ce66a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>