Prepare 1.5 #486

Job	Run time
Test with python 3.6 on windows-latest	2m 13s
Test with python 3.7 on windows-latest	1m 34s
Test with python 3.8 on windows-latest	8m 35s
Test with python 3.11 on windows-latest	8m 27s
Test with python 3.6 on macos-latest	1m 35s
Test with python 3.7 on macos-latest	44s
Test with python 3.8 on macos-latest	6m 35s
Test with python 3.11 on macos-latest	5m 44s
Test with python 2.7 on ubuntu-20.04	31s
Test with python 3.6 on ubuntu-20.04	45s
Test with python 3.7 on ubuntu-latest	48s
Test with python 3.8 on ubuntu-latest	3m 33s
Test with python 3.9 on ubuntu-latest	3m 46s
Test with python 3.10 on ubuntu-latest	3m 53s
Test with python 3.11 on ubuntu-latest	3m 44s
	52m 27s

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