Update evolution to version 3.44.3 / rev 258 via SR 986578
    
    https://build.opensuse.org/request/show/986578
    by user dimstar + dimstar_suse
    - Update to version 3.44.3:
      + EMailStripSigFilter: Make sure it doesn't read out of buffer
        bounds.
      + Bugs fixed:
        - icons: Add symbolic variants for toolbar/folder tree icons.
        - Composer: Skip STYLE and other tags in convert to Plain Text.
        - Drag&Drop creates many identical temporary files.
        - Update Task preview, when Task is updated.
        - ESourceSelectorDialog: Close on double-click on source only.
        - Crash when printing task list to pdf.
        - Logic of "Do not sign meeting requests" is inverted.
        - EShell: Use symbolic icons on GNOME.
      + Updated translations. (forwarded request 986298 from iznogood)