Drop support for Django < 4.2 #137

Job	Run time
tests_node	14s
Test on Python 3.8 and Django 4.2 on postgres	1m 5s
Test on Python 3.9 and Django 4.2 on postgres	55s
Test on Python 3.10 and Django 4.2 on postgres	55s
Test on Python 3.11 and Django 4.2 on postgres	1m 33s
Test on Python 3.12 and Django 4.2 on postgres	55s
Test on Python 3.10 and Django 5.0 on postgres	1m 46s
Test on Python 3.11 and Django 5.0 on postgres	1m 9s
Test on Python 3.12 and Django 5.0 on postgres	1m 14s
Test on Python 3.10 and Django 5.1 on postgres	58s
Test on Python 3.11 and Django 5.1 on postgres	51s
Test on Python 3.12 and Django 5.1 on postgres	59s
Test on Python 3.8 and Django 4.2 on sqlite	1m 11s
	13m 45s

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