specify test path #480

Job	Run time
Test Python 3.8 on ubuntu-latest	3m 39s
Test Python 3.9 on ubuntu-latest	3m 44s
Test Python 3.10 on ubuntu-latest	4m 0s
Test Python 3.11 on ubuntu-latest	2m 49s
Test Python 3.8 on macos-latest	6m 46s
Test Python 3.9 on macos-latest	6m 37s
Test Python 3.10 on macos-latest	7m 15s
Test Python 3.11 on macos-latest	6m 14s
Test Python 3.8 on windows-latest	10m 39s
Test Python 3.9 on windows-latest	11m 35s
Test Python 3.10 on windows-latest	13m 18s
Test Python 3.11 on windows-latest	13m 31s
	1h 30m 7s

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