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Add clang-format configuration #671

Job	Run time
ubuntu (22.04)	7m 5s
ubuntu (24.04)	7m 20s
oldschool (rockylinux, 9, debug)	6m 34s
oldschool (rockylinux, 9, release)	4m 24s
macOS (latest, 3.9, 5.9.*, release)	7m 0s
macOS (latest, 3.9, 5.9.*, debug)	9m 35s
macOS (latest, 3.11, 5.12.*, debug)	8m 1s
windows (win64_mingw73, 3.10, 5.12.*, x64)	5m 58s
windows (win64_msvc2017_64, 3.6, x64, 5.11.*)	5m 26s
windows (win32_mingw53, 3.6, x86, 5.11.*)	6m 54s
windows (win64_msvc2019_64, 3.13, x64, 5.15.*, PythonQtCore PythonQtGui PythonQtMultimedia)	4m 48s
	1h 13m 5s

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