Fix test for Docker container #9751

Job	Run time
build (ubuntu-latest)	1m 4s
build (windows-latest)	3m 45s
testing (windows-latest, 3.10, 18.x, 1)	4m 36s
testing (windows-latest, 3.12, 20.x, 2)	5m 10s
testing (ubuntu-latest, 3.10, 22.x, 3)	2m 48s
testing (ubuntu-latest, 3.11, 20.x, 4)	2m 28s
testing (windows-latest, 3.9, 20.x, 1)	5m 21s
testing (ubuntu-latest, 3.10, 18.x, 2)	2m 29s
testing (ubuntu-latest, 3.9, 18.x, 3)	2m 25s
testing (ubuntu-latest, 3.10, 20.x, 4)	2m 15s
testing (ubuntu-latest, 3.11, 20.x, 1)	2m 54s
testing (macos-latest, 3.11, 20.x, 1)	3m 5s
testing (macos-latest, 3.12, 20.x, 2)	1m 45s
testing (macos-latest, 3.10, 20.x, 3)	3m 0s
test-install (windows-latest, 3.11, 18.x)	7m 48s
test-install (ubuntu-latest, 3.9, 18.x)	4m 28s
test-install (ubuntu-latest, 3.11, 18.x)	4m 15s
test-install (ubuntu-latest, 3.11, 20.x)	4m 21s
	1h 3m 57s

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