Update README.md #503

Job	Run time
Test Python 3.8 on ubuntu-latest	2m 22s
Test Python 3.9 on ubuntu-latest	2m 37s
Test Python 3.10 on ubuntu-latest	2m 46s
Test Python 3.11 on ubuntu-latest	3m 5s
Test Python 3.8 on macos-latest	3m 57s
Test Python 3.9 on macos-latest	4m 12s
Test Python 3.10 on macos-latest	4m 48s
Test Python 3.11 on macos-latest	5m 11s
Test Python 3.8 on windows-latest	10m 35s
Test Python 3.9 on windows-latest	10m 7s
Test Python 3.10 on windows-latest	8m 34s
Test Python 3.11 on windows-latest	10m 18s
	1h 8m 32s

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