Git Client plugin previously was version was version:3.0.0-rc(beta) which has security vulnerabilities so upgraded to latest version:2.8.6 (latest). But unfortunately all the dependency plugins were still looking for 3.0.0 and believing that 2.8.6 is older version (which was a bug in plugin) are still using older version instead of newer version which caused issue during the upgrade. So tried to revert back but there is not revert back to beta version from 2.8.6 to 3.0.0.
No Option for revert back to older version: And there is no such version in https://updates.jenkins-ci.org/download/plugins/git-client/ for manual upgrade of Git Client as before one was beta version.
Note this problem I faced in my project. So if someone else is also facing similar issue this might help them to resolve.