Test

Add Async Factory Support #615

Job	Run time
Python 3.8, Database sqlite	1m 17s
Python 3.8, Database postgres	1m 12s
Python 3.9, Database sqlite	1m 27s
Python 3.9, Database postgres	1m 7s
Python 3.10, Database sqlite	1m 35s
Python 3.10, Database postgres	1m 29s
Python 3.11, Database sqlite	1m 10s
Python 3.11, Database postgres	1m 7s
Python 3.12, Database sqlite	39s
Python 3.12, Database postgres	40s
Python pypy-3.9, Database sqlite	1m 53s
Python pypy-3.9, Database postgres	1m 42s
Python pypy-3.10, Database sqlite	2m 1s
Python pypy-3.10, Database postgres	1m 51s
	19m 10s

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