Build

Use Qt 6 for macOS workflow #760

Job	Run time
ubuntu (22.04)	19m 25s
macOS (macos-14, 3.9, 5.9.*, debug)	59m 15s
windows (win64_mingw73, 3.10, 5.12.*, x64)	5m 43s
oldschool (rockylinux, 9, debug)	5m 33s
ubuntu (24.04)	19m 29s
macOS (macos-14, 3.9, 5.9.*, release)	59m 15s
windows (win32_mingw53, 3.6, x86, 5.11.*)	6m 30s
windows (win64_msvc2017_64, 3.6, x64, 5.11.*)	4m 25s
windows (win64_msvc2019_64, 3.13, x64, 5.15.*, PythonQtCore PythonQtGui PythonQtMultimedia)	4m 7s
macOS (macos-14, 3.11, 5.12.*, debug)	59m 15s
oldschool (rockylinux, 9, release)	5m 29s
	4h 8m 26s

Provide feedback