Update python-dunamai to version 1.21.0 / rev 4 via SR 1171535
    
    https://build.opensuse.org/request/show/1171535
    by user dirkmueller + anag+factory
    - update to 1.21.0:
      * Generally, when Dunamai can detect the VCS in use, but
        there's no version set yet, then Dunamai uses 0.0.0 as a
        fallback, unless strict mode is enabled.
        However, if there were some tags and none matched the version
        pattern, then Dunamai would yield an error.
      * Added `--ignore-untracked` option to control checking whether
        the repository is dirty.