Build

Use Qt 6 for macOS workflow #763

Job	Run time
oldschool (rockylinux, 9, release)	36s
windows (win64_mingw73, 3.10, 5.12.*, x64)	35s
windows (win64_msvc2017_64, 3.6, x64, 5.11.*)	36s
macOS (latest, 3.13, 6.11.*, debug)	21s
ubuntu (24.04)	37s
windows (win32_mingw53, 3.6, x86, 5.11.*)	37s
ubuntu (22.04)	35s
oldschool (rockylinux, 9, debug)	35s
macOS (latest, 3.10, 6.11.*, release)	18s
windows (win64_msvc2019_64, 3.13, x64, 5.15.*, PythonQtCore PythonQtGui PythonQtMultimedia)	37s
macOS (latest, 3.10, 6.11.*, debug)	24s
	5m 51s

Provide feedback