firecow/gitlab-ci-local 4.39.0

!reference improvements

on GitHub

• Recursive mix of extends and reference bugfix #767
• Fix coverage percent #747
• Correct CI_REGISTRY and CI_REGISTRY_IMAGE expansion #759
• Assert scripts are array of string #761
• Cast vars to string, before string matching #766
• Add --unset-variable cli option #765
• Add --quiet option #763
• Add --stage cli option #764

Thanks to @FnuGk @udalrich @jg-cantaa @adam-iris @peterbbeu @arg0d for contributing 🥳