Support user type mannequin on for GitHub #571

Job	Run time
Test dependencies resolver (macos-14, 15.4)	2m 24s
Test on Linux (5.9)	4m 14s
Test dependencies resolver (macos-15, 16.1)	2m 10s
Test on Linux (5.10)	4m 32s
Test without SPM on Linux (5.9)	2m 50s
Test on Linux (6.0)	5m 20s
Test on macOS (macos-13, 14.3.1)	7m 4s
Test without SPM on Linux (5.10)	1m 50s
Test without SPM on macOS (macos-13, 14.3.1)	3m 13s
Test without SPM on Linux (6.0)	2m 19s
Test on macOS (macos-14, 15.4)	3m 12s
Test on macOS (macos-15, 16.1)	3m 18s
Test without SPM on macOS (macos-14, 15.4)	1m 48s
Test without SPM on macOS (macos-15, 16.1)	1m 59s
	46m 13s

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