Drop Python 3.8, test PyPy 3.10 #1503

Job	Run time
check_links	1m 21s
Build, test and code coverage (ubuntu-latest, 3.8)	3m 3s
Build, test and code coverage (ubuntu-latest, 3.11)	2m 6s
Build, test and code coverage (macos-latest, 3.8)	3m 12s
Build, test and code coverage (macos-latest, 3.11)	2m 25s
check_release	1m 31s
Build, test and code coverage (windows-latest, 3.8)	3m 54s
Build, test and code coverage (windows-latest, 3.11)	4m 4s
Build, test and code coverage (windows-latest, 3.9)	3m 35s
Make SDist	21s
Build, test and code coverage (ubuntu-latest, pypy-3.10)	30m 13s
Build, test and code coverage (ubuntu-latest, 3.13)	2m 45s
Build, test and code coverage (macos-latest, 3.10)	2m 28s
Test Docs	43s
Test Minimum Versions	1m 6s
Test Lint	52s
Test Prereleases	2m 6s
Install from SDist and Test	1m 53s
coverage	0s
tests_check	2s
	1h 7m 40s

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