fix: Release Manager infinite deployment

[mvgijssel]

ref #451

By implementing https://github.com/vgijssel/setup/pull/624 basically introduced an infinite loop of releases, because the .md files are never removed from the git repository 🤦. Need to find another way to instantiate a new git repository with the same changes applied.

Secondly the provisioner deployment is failing because apparently nix-build is not within the path?

TODO

• [x] Ensure nix-build exists for deploy job
• [x] Figure out how to fix the case that the Python base image is missing (something to do with RBE and nix)
• [x] Ensure we don't have an infinite loop when releasing
• [x] Cleanup commits on master
• [x] Cleanup tags on master
• [x] Cleanup unnecessary releases
• [x] Cleanup unnecessary packages

[mvgijssel]

Resync local tags by first removing them and afterwards fetching them

git tag -l | xargs git tag -d
git fetch --tags