Update python-iso8601 to version 2.1.0 / rev 23 via SR 1161090
    
    https://build.opensuse.org/request/show/1161090
    by user dirkmueller + anag+factory
    - update to 2.1.0:
      * Use ruff for linting
    - update to 2.0.0:
      * Add Python 3.12 support
      * Fix test_fixedoffset_eq by adding an actual assertion
      * Drop Python 3.6 support (3.6 is end of life)
    
      * Fix parsing of microseconds
    - Added .changes file