Bump Qt versions and Qt acquisition script

[Cuperino]

Bumping the Qt acquisition script should fix build errors in CI.

[Cuperino]

I've bumped the versions to the latest micro versions available. Nevertheless, the Qt 5s fail to build, with linker undefined symbol errors that occur after bumping jurplel/install-qt-action.

[Shatur]

Looks like on MacOS it tries to build it for ARM, but Qt binaries are for x86.

[Cuperino]

@Shatur I got CI fixed for all systems using CMake. I couldn't get the qmake build to work with Windows, I don't normally work on Windows and QMake is being phased out anyways, so I opted to remove those builds from CI in the end.

Feel free to re-add them and fix whatever issue is left. Here is the commit that got the closest to getting qmake to work everywhere: 57525e01402bd21c36225858147470861b80f720

[Shatur]

I'm on board with removing qmake. Could you remove the qmake file completely?

[Cuperino]

Done. All files pertaining qmake have been removed.

[Shatur]

Thank you!