Fix packaging for MacOS release builds

Let CPack use sudo when invoking hdiutil to ensure that it succeeds.
This mitigates an issue that causes hdiutil to fail very often for MacOS
versions beyond 12. The cause of the issue is unknown.

See actions/runner-images#7522 (comment)

.github/workflows/macos-build.yaml

@@ -149,6 +149,7 @@ jobs:
           -DQT_DIR=${{ env.QT_DIR }} \
           -DBUILD_DUKPT_UI=YES \
           -DBUILD_MACOSX_BUNDLE=YES \
+          -DCPACK_COMMAND_HDIUTIL="/usr/bin/sudo /usr/bin/hdiutil" \
           -DSIGN_MACOSX_BUNDLE=openemv.org
 
     - name: Build