Merge branch 'stable-6.8'

* stable-6.8:
  Prepare 6.8.1-SNAPSHOT builds
  JGit v6.8.0.202311291450-r
  Rename method parameter to fix warning about hidden field
  Fix warnings about empty control flow statements
  BitmapIndexImpl: externalize error message
  Suppress not-externalized string warnings
  Silence API error for new method BitmapIndex#addBitmapLookupListener
  Update Orbit to orbit-aggregation/2023-12
  Prepare 6.8.0-SNAPSHOT builds
  JGit v6.8.0.202311212206-rc1

Change-Id: Ie88662f6458bb80147c7c164424eebd8b8240fc7

diff --cc org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java
Simple merge