feat: drop Python 3.8 support #625

Job	Run time
Build documentation	3m 41s
Build documentation	3m 41s
Build and Test (3.9, ubuntu-latest)	3m 18s
Build and Test (3.9, ubuntu-latest)	3m 18s
Build wheels on MacOS	0s
Build wheels on MacOS	0s
Build and Test (3.9, windows-latest)	5m 55s
Build and Test (3.9, windows-latest)	3m 38s
Build and Test (3.10, ubuntu-latest)	4m 56s
Build and Test (3.10, ubuntu-latest)	4m 56s
Build and Test (3.10, windows-latest)	3m 6s
Build and Test (3.10, windows-latest)	3m 6s
Build and Test (3.11, ubuntu-latest)	3m 12s
Build and Test (3.11, ubuntu-latest)	3m 12s
Build and Test (3.11, windows-latest)	2m 57s
Build and Test (3.11, windows-latest)	2m 57s
Build and Test (3.12, ubuntu-latest)	3m 14s
Build and Test (3.12, ubuntu-latest)	3m 14s
Build and Test (3.12, windows-latest)	3m 18s
Build and Test (3.12, windows-latest)	3m 18s
Upload development documentation	0s
Upload development documentation	0s
Release	0s
Release	0s
Upload release documentation	0s
Upload release documentation	0s
	1h 4m 57s

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