[maven-release-plugin] prepare release git-4.8.1
[maven-release-plugin] prepare release git-4.8.1

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