Switch "Packaging" platform configurations to CMake-based configs

The release team uses configurations tagged with "Packaging" to create Qt 6.0 snapshots.
Currently in dev all such configurations are qmake ones.

To help the release team to try and create snapshots with CMake configurations, the qt5.git wip/cmake branch was updated to have CMake configurations.
Here's a few such changes.

https://codereview.qt-project.org/c/qt/qt5/+/298257
https://codereview.qt-project.org/c/qt/qt5/+/300110
https://codereview.qt-project.org/c/qt/qt5/+/302732
https://codereview.qt-project.org/c/qt/qt5/+/304390

We need to replace the dev branch Packaging configurations with CMake-based ones.

To do that, we need to identify the qmake Packaging configurations, and recreate them as close as possible with CMake configure arguments.