Update wsl-appx to version 1 / rev 13 via SR 896705
    
    https://build.opensuse.org/request/show/896705
    by user lkocman + dimstar_suse
    - Set Tumbleweed appx version using same method as SLE and Leap.
      * Concatenate VERSION_ID year and day of year to consume only one
        segment of four segment appx version:
        VERSION_ID="20210524" date --date=$VERSION_ID +"%y%j" -> 21144
      * Transforming the TW version date to fit in one segment 0-65535
        is necessary for compliance with the MS Store restriction that
        version numbers must always increase. The two RELEASE digits
        are each given their own segment for this reason.
      * The kiwi generated appx file now contains both TW VERSION_ID
        and the appx version for easier cross reference.
      * As with SLE and Leap set digits two and three of appx VERSION
        to 0 for subsequent regex or template substitution during kiwi
        image build. With the zero digits e.g. 153.0.0.0 it