Build

Fix build under Qt 6.9 #492

Job	Run time
macOS (latest, 3.9, 5.9.*, debug)	5m 18s
macOS (latest, 3.9, 5.9.*, release)	5m 28s
macOS (latest, 3.11, 5.12.*, debug)	3m 32s
windows (win64_msvc2017_64, 3.6, x64, 5.11.*)	4m 28s
windows (win32_mingw53, 3.6, x86, 5.11.*)	6m 28s
windows (win64_mingw73, 3.10, 5.12.*, x64)	5m 52s
ubuntu (24.04)	7m 15s
oldschool (rockylinux, 9, release)	4m 29s
oldschool (rockylinux, 9, debug)	3m 50s
ubuntu (22.04)	7m 0s
windows (win64_msvc2019_64, 3.13, x64, 5.15.*, PythonQtCore PythonQtGui PythonQtMultimedia)	4m 5s
	57m 45s

Provide feedback