Get 'test' working properly with acls and supplementary groups #15537

Job	Run time
Style/spelling (ubuntu-latest, feat_os_unix)	17s
Style/toml	15s
Pre-commit hooks	32s
Style/lint (macos-latest, feat_os_macos)	1m 55s
Style/Python	6s
Style/lint (windows-latest, feat_os_windows)	3m 37s
Style/lint (ubuntu-latest, all, true)	2m 22s
Style/format (ubuntu-latest, feat_os_unix)	17s
	9m 21s

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