Added tag v4.13.1 for changeset c3ded3ff17e9

release: Finish preparation for 4.13.1

release: updated pip2nix output for 4.13.1

release: Start preparation for 4.13.1

dependencies: pin some dependencies to prevent from constant version changes.

Added tag v4.13.0 for changeset e1d42d92a0fe

release: Finish preparation for 4.13.0

release: Merge default into stable for release preparation

git-hooks: store git-env into hooks, so we can use the sandbox storage area, and execute rcextension pre-commit hooks, to read not yet commit objects in GIT.

hooks: adjust to handle protected branch cases, and force push.