Update python-watchdog to version 2.3.1 / rev 18 via SR 1068309
    
    https://build.opensuse.org/request/show/1068309
    by user dirkmueller + dimstar_suse
    - update to 2.3.1:
      * Run ``black`` on the entire source code
      * Bundle the ``requirements-tests.txt`` file in the source
        distribution
      * [watchmedo] Exclude ``FileOpenedEvent`` events from
        ``AutoRestartTrick``, and ``ShellCommandTrick``, to restore
        watchdog < 2.3.0 behavior. A better solution should be found
        in the future.
      * [watchmedo] Log ``FileOpenedEvent``, and ``FileClosedEvent``,
        events in ``LoggerTrick``
      * [inotify] Add support for ``IN_OPEN`` events: a
        ``FileOpenedEvent`` event will be fired
      * [watchmedo] Add optional event debouncing for ``auto-
        restart``, only restarting once if many events happen in
        quick succession (``--debounce-interval``)
      * [watchmedo] Exit gracefully on ``KeyboardInterrupt``
        exception (Ctrl+C)
      * [watchmedo] A