Misc cleanup and types updates #2576

Job	Run time
Test Lint	43s
build (ubuntu-latest, 3.8)	5m 10s
build (ubuntu-latest, 3.12)	15m 30s
build (windows-latest, 3.8)	4m 42s
check_release	2m 8s
build (windows-latest, 3.12)	4m 44s
test_docs	38s
build (macos-latest, 3.8)	5m 27s
build (macos-latest, 3.12)	15m 42s
Test Minimum Versions	4m 40s
build (windows-latest, 3.9)	4m 31s
build (ubuntu-latest, pypy-3.9)	15m 45s
build (macos-latest, 3.10)	15m 44s
build (ubuntu-latest, 3.11)	15m 30s
test_without_debugpy (ubuntu-latest, 3.9)	15m 54s
link_check	3m 49s
Make SDist	26s
Test Prereleases	20m 14s
Install from SDist and Test	20m 12s
coverage	0s
tests_check	2s
	2h 51m 31s

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