feat: drop support for python 3.8 #1209

Job	Run time
Build python wheel	1m 11s
Test dev setup on ubuntu-latest	49s
Test dev setup on windows-latest	4m 13s
Test dev setup on macos-latest	39s
lint / Lint	40s
Test installation of all dependencies	49s
Test (Python: 3.9, DB: mysql)	26m 28s
End-to-end Test (Python: 3.12, DB: postgres)	5m 45s
Test (Python: 3.9, DB: postgres)	25m 44s
Test (Python: 3.12, DB: mysql)	30m 26s
Test (Python: 3.12, DB: postgres)	29m 17s
Indicate completion to coveralls	5s
required-checks-pass	3s
	2h 6m 9s

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