Add Django 5.0 support #82

Job	Run time
build (Python 3.8, Django 3.2)	23s
build (Python 3.8, Django 4.1)	26s
build (Python 3.8, Django 4.2)	24s
build (Python 3.9, Django 3.2)	26s
build (Python 3.9, Django 4.1)	35s
build (Python 3.9, Django 4.2)	23s
build (Python 3.10, Django 3.2)	28s
build (Python 3.10, Django 4.1)	23s
build (Python 3.10, Django 4.2)	21s
build (Python 3.10, Django 5.0)	26s
build (Python 3.11, Django 3.2)	29s
build (Python 3.11, Django 4.1)	22s
build (Python 3.11, Django 4.2)	24s
build (Python 3.11, Django 5.0)	28s
build (Python 3.12, Django 5.0)	30s
build (Python pypy-3.10, Django 3.2)	41s
build (Python pypy-3.10, Django 4.1)	38s
build (Python pypy-3.10, Django 4.2)	55s
build (Python pypy-3.10, Django 5.0)	45s
build (Python 3.11, Django qa)	27s
build (Python 3.10, Django main)	42s
build (Python 3.11, Django main)	36s
build (Python pypy-3.10, Django main)	1m 2s
	12m 14s

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