Update syncthing to version 1.23.7 / rev 138 via SR 1103112
    
    https://build.opensuse.org/request/show/1103112
    by user mkittler + dimstar_suse
    - Update to 1.13.7
      * Bugfixes:
        #6597: setLowPriority should not increase process priority when already lower (in Windows)
        #7698: ursrv: unrealistic uptime data, likely due to unset RTC (1970-01-01)
        #8958: Extended attribute filter editor should be enabled when "send extended attributes" is checked
        #8967: Shared With list ends with comma on 1 device
        #9001: relaysrv crash after some weeks of operation
      * Enhancements:
        #8890: Do not autoexpand tilde sign (~) to an absolute home directory path
        #8957: Add environment variables for --home, --conf, and --data
        #8968: Error for Windows invalid file names should indicate the invalid character or name part
      * Other issues:
        #8973: 1.23.6 docker image no longer available for linux/arm/v7
        #8983: Integrate govul