message: it is enough to validate the appdata only once, not needed to be done also for other qt versions
diff: @@ -272,7 +272,7 @@ jobs:
  # Command copied from flathub build process
  - name: Validate appdata file
  - if: matrix.env.ninja_platform == 'linux'
  + if: matrix.env.ninja_platform == 'linux' && !matrix.qt.check_only
  run: |
  sudo apt install flatpak
  sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
  