Runs the tests nightly #1059

Job	Run time
Run tests with Python 3.7 on ubuntu-20.04	5m 53s
Run tests with Python 3.7 on windows-latest	9m 18s
Run tests with Python 3.8 on ubuntu-20.04	5m 55s
Run tests with Python 3.8 on windows-latest	10m 23s
Run tests with Python 3.9 on ubuntu-20.04	6m 4s
Run tests with Python 3.9 on windows-latest	9m 19s
Run tests with Python 3.10 on ubuntu-20.04	5m 59s
Run tests with Python 3.10 on windows-latest	9m 43s
Run tests with Python 3.11 on ubuntu-20.04	5m 50s
Run tests with Python 3.11 on windows-latest	9m 41s
Run tests with Python 3.12 on ubuntu-20.04	6m 13s
Run tests with Python 3.12 on windows-latest	9m 21s
Run tests with Python pypy-3.9 on ubuntu-20.04	12m 4s
	1h 45m 43s

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