fix macosx build

Author: Martin Rotter

resources/scripts/github-actions/build-linux-mac.sh

@@ -33,7 +33,7 @@ else
   echo "Qt bin directory is: $QTBIN"
   echo "Qt will be installed to: $QTPATH"
 
-  aqt install -O "$QTPATH" "5.15.2" "mac" "desktop" "clang_64" -m "qtwebengine" "qtmultimedia"
+  aqt install-qt -O "$QTPATH" "mac" "desktop" "$QTVERSION" "clang_64" -m "qtwebengine"
 
   export QT_PLUGIN_PATH="$QTPATH/$QTVERSION/clang_64/plugins"
   export PATH="$QTBIN:$PATH"