Add Django 5.0 support #80

Job	Run time
build (Python 3.8, Django 3.2)	35s
build (Python 3.8, Django 4.1)	34s
build (Python 3.8, Django 4.2)	36s
build (Python 3.9, Django 3.2)	29s
build (Python 3.9, Django 4.1)	29s
build (Python 3.9, Django 4.2)	24s
build (Python 3.10, Django 3.2)	32s
build (Python 3.10, Django 4.1)	29s
build (Python 3.10, Django 4.2)	31s
build (Python 3.10, Django 5.0)	36s
build (Python 3.11, Django 3.2)	32s
build (Python 3.11, Django 4.1)	37s
build (Python 3.11, Django 4.2)	31s
build (Python 3.11, Django 5.0)	30s
build (Python 3.12, Django 5.0)	45s
build (Python pypy-3.10, Django 3.2)	54s
build (Python pypy-3.10, Django 4.1)	1m 1s
build (Python pypy-3.10, Django 4.2)	53s
build (Python pypy-3.10, Django 5.0)	55s
build (Python 3.11, Django qa)	31s
build (Python 3.10, Django main)	45s
build (Python 3.11, Django main)	34s
build (Python pypy-3.10, Django main)	1m 21s
	15m 4s

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