Build

Fix build under Qt 6.9 #490

Job	Run time
windows (win64_msvc2017_64, 3.6, x64, 5.11.*)	5m 24s
windows (win64_msvc2019_64, 3.13, x64, 5.15.*, PythonQtCore PythonQtGui PythonQtMultimedia)	3m 56s
ubuntu (24.04)	7m 15s
macOS (latest, 3.9, 5.9.*, release)	5m 41s
macOS (latest, 3.11, 5.12.*, debug)	5m 21s
macOS (latest, 3.9, 5.9.*, debug)	5m 57s
windows (win32_mingw53, 3.6, x86, 5.11.*)	6m 30s
ubuntu (22.04)	6m 41s
oldschool (rockylinux, 9, debug)	3m 48s
windows (win64_mingw73, 3.10, 5.12.*, x64)	6m 3s
oldschool (rockylinux, 9, release)	4m 19s
	1h 0m 55s

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