Drop EOL Django 2.2 and 4.0 support #74

Job	Run time
build (Python 3.8, Django 2.2)	42s
build (Python 3.8, Django 3.2)	24s
build (Python 3.8, Django 4.0)	38s
build (Python 3.8, Django 4.1)	29s
build (Python 3.8, Django 4.2)	29s
build (Python 3.9, Django 2.2)	50s
build (Python 3.9, Django 3.2)	40s
build (Python 3.9, Django 4.0)	38s
build (Python 3.9, Django 4.1)	35s
build (Python 3.9, Django 4.2)	35s
build (Python 3.10, Django 3.2)	47s
build (Python 3.10, Django 4.0)	1m 4s
build (Python 3.10, Django 4.1)	32s
build (Python 3.10, Django 4.2)	41s
build (Python 3.11, Django 3.2)	35s
build (Python 3.11, Django 4.0)	1m 32s
build (Python 3.11, Django 4.1)	21s
build (Python 3.11, Django 4.2)	23s
build (Python pypy-3.10, Django 2.2)	1m 40s
build (Python pypy-3.10, Django 3.2)	53s
build (Python pypy-3.10, Django 4.0)	1m 59s
build (Python pypy-3.10, Django 4.1)	1m 1s
build (Python pypy-3.10, Django 4.2)	48s
build (Python 3.11, Django qa)	34s
build (Python 3.10, Django main)	52s
build (Python 3.11, Django main)	36s
build (Python pypy-3.10, Django main)	1m 21s
	21m 39s

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