fix: require Qt 6.5, FTBFS on ubuntu 24.04 CI

.github/workflows/linux.yml

@@ -13,11 +13,16 @@ jobs:
       - name: Install build dept.
         run: |
           sudo apt update
-          sudo apt install cmake qt6-base-dev qt6-tools-dev qt6-declarative-dev portaudio19-dev libopenmpt-dev
+          sudo apt install cmake portaudio19-dev libopenmpt-dev
           # for linuxdeploy: https://github.com/AppImage/AppImageKit/wiki/FUSE
           # linuxdeploy-plugin-qt still requires qmake currently: https://github.com/linuxdeploy/linuxdeploy-plugin-qt/issues/156
           sudo add-apt-repository universe
-          sudo apt install libfuse2 qmake6
+          sudo apt install libfuse2
+      - name: Install Qt
+        uses: jurplel/install-qt-action@v4
+        with:
+          version: '6.7.2'
+          modules: 'qtmultimedia'
       - name: Get linuxdeploy
         run: |
           wget https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage