Test

Drop support for Django 4.1 #679

Job	Run time
Python 3.8, Database sqlite	1m 14s
Python 3.8, Database postgres	1m 12s
Python 3.9, Database sqlite	1m 22s
Python 3.9, Database postgres	1m 20s
Python 3.10, Database sqlite	2m 9s
Python 3.10, Database postgres	1m 59s
Python 3.11, Database sqlite	1m 36s
Python 3.11, Database postgres	1m 32s
Python 3.12, Database sqlite	1m 46s
Python 3.12, Database postgres	1m 24s
Python pypy-3.9, Database sqlite	3m 7s
Python pypy-3.9, Database postgres	2m 16s
Python pypy-3.10, Database sqlite	3m 4s
Python pypy-3.10, Database postgres	2m 18s
	26m 19s

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