allow python_version > 3.9

[zivis]

Pull Request (PR) description

Allow python_version to have a two digit minor version as in debian bookworm, which ships with 3.11 for example

[smortex]

The REFERENCE.md file needs to be updated. From your working branch:

$ bundle update                               # Make sure puppet-strings is up-to-date
$ bundle exec rake strings:generate:reference # Regenerate REFERENCE.md
$ git add REFERENCE.md
$ git commit --amend
$ git push --force

Thanks!