[maven-release-plugin] prepare release git-3.9.1
[maven-release-plugin] prepare release git-3.9.1

jenkinsci/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,jenkinsci/git-plugin,martinda/git-plugin,martinda/git-plugin,MarkEWaite/git-plugin,MarkEWaite/git-plugin,v1v/git-plugin,martinda/git-plugin,v1v/git-plugin,v1v/git-plugin