Update digikam to version 7.4.0 / rev 201 via SR 945685
    
    https://build.opensuse.org/request/show/945685
    by user wolfi323 + dimstar_suse
    - Update to 7.4.0
      * https://www.digikam.org/news/2021-12-17-7.4.0_release_announcement/
    - New features (from NEWS):
    Bundles : AppImage is now compiled under Mageia 7.1 instead 6.1 for
              a better binary compatibility with recent Linux.
    Bundles : AppImage use last Qt 5.15.2 and KF5 5.84 libraries.
    Bundles : Last stable Exiv2 0.27.5 is now used to compile Windows,
              AppImage, and MacOS bundles.
    Plugins : New tool to share items on the network with a Motion JPEG
              stream server.
    Showfoto: Add new left sidebar hosting a folder-view to quickly
              explore images from local file system.
    Showfoto: Add new left sidebar hosting a stack-view to host
              favorite contents.
    Database: Add the ability to use a local SQLite thumbnail database
              with an external