Runs the tests nightly #1062

Job	Run time
Run tests with Python 3.7 on ubuntu-20.04	5m 48s
Run tests with Python 3.7 on windows-latest	10m 17s
Run tests with Python 3.8 on ubuntu-20.04	6m 9s
Run tests with Python 3.8 on windows-latest	9m 43s
Run tests with Python 3.9 on ubuntu-20.04	6m 4s
Run tests with Python 3.9 on windows-latest	10m 5s
Run tests with Python 3.10 on ubuntu-20.04	6m 7s
Run tests with Python 3.10 on windows-latest	9m 37s
Run tests with Python 3.11 on ubuntu-20.04	5m 51s
Run tests with Python 3.11 on windows-latest	9m 52s
Run tests with Python 3.12 on ubuntu-20.04	6m 10s
Run tests with Python 3.12 on windows-latest	9m 55s
Run tests with Python pypy-3.9 on ubuntu-20.04	12m 1s
	1h 47m 39s

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