chore: bump version - Githubissues

Description

Bumps version to 2.0.1 to prepare release of djangocms-versioning 2.0.1

[ ] I have opened this pull request against master
[ ] I have added or modified the tests when changing logic
[ ] I have followed the conventional commits guidelines to add meaningful information into the changelog
[ ] I have read the contribution guidelines and I have joined #workgroup-pr-review on Slack to find a “pr review buddy” who is going to review my pull request.