Merge branch 'stable-5.7'

* stable-5.7:
  Prepare 5.7.1-SNAPSHOT builds
  JGit v5.7.0.202003090808-r
  Prepare 5.7.0-SNAPSHOT builds
  JGit v5.7.0.202002241735-m3

Change-Id: Ibaf382bb2337ca8099f891d4364cebe0b85b095d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>