Update syncthing to version 1.20.4 / rev 125 via SR 992531
    
    https://build.opensuse.org/request/show/992531
    by user mkittler + dimstar_suse
    - Update to 1.20.4
      * Bugfixes:
        #7458: Syncthing announces address of interface which is down
        #8479: Panic in failure reporting
      * Enhancements:
        #8007: Support listing the discovered devices using the cli