Update gnome-browser-connector to version 42.1 / rev 2 via SR 1002299
    
    https://build.opensuse.org/request/show/1002299
    by user iznogood + dimstar_suse
    - Update to version 42.1:
      + Added detected python path in scripts shebang.
      + Restored compatibility with Python 3.8.
      + Fix errors in `get_variant` helper that leads to connector
        crash.
      + Fixed build system error when python dependencies are missing.
    - Update Source tag to reflect new home.
    - Drop hashbang fixes to python scripts: no longer required.