tests

fix Windows build error due to GNU stuff #1252

Job	Run time
tests-Windows-CLI (mingw64, x86_64, 3.8)	15m 26s
tests-Unix-CLI (ubuntu-20.04, 7, 3.8)	5m 45s
tests-Windows-CLI (ucrt64, ucrt-x86_64, 3.8)	15m 29s
canceller	3s
tests-Unix-CLI (ubuntu-20.04, 11, 3.9)	7m 2s
tests-Unix-GUI (ubuntu-20.04, 5.9.5, 7)	3m 20s
tests-Unix-CLI (macos-12, 3.8)	7m 20s
tests-Unix-GUI (ubuntu-20.04, 5.15.2, 11)	4m 25s
tests-Unix-CLI (macos-13, 3.9)	9m 3s
tests-windows-latest-pacman (mingw64, x86_64)	1m 40s
tests-Unix-GUI (ubuntu-22.04, 5.15.2, 12)	4m 6s
tests-windows-latest-pacman (ucrt64, ucrt-x86_64)	1m 40s
tests-Unix-GUI (ubuntu-22.04, 6.7.2, 12)	4m 27s
tests-Unix-GUI (macos-12, 5.9.5)	3m 43s
tests-Windows-GUI (mingw64, x86_64)	8m 36s
tests-Unix-GUI (macos-13, 5.15.2)	4m 58s
tests-Windows-GUI (ucrt64, ucrt-x86_64)	8m 40s
tests-Unix-GUI (macos-13, 6.7.2)	7m 23s
	1h 53m 6s

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