Backports and extra changes to fix CI on 6.x branch #3252

Job	Run time
check_release	1m 38s
build (ubuntu-latest, 3.9)	3m 8s
build (ubuntu-latest, 3.12)	3m 12s
build (windows-latest, 3.9)	3m 16s
link_check	3m 21s
Make SDist	48s
build (windows-latest, 3.12)	3m 16s
build (macos-latest, 3.9)	3m 27s
build (macos-latest, 3.12)	3m 26s
test_docs	30s
Test Lint	55s
build (ubuntu-latest, pypy-3.9)	2m 51s
build (macos-latest, 3.10)	3m 25s
build (ubuntu-latest, 3.11)	2m 59s
Test Minimum Versions	2m 32s
Test Prereleases	1m 45s
test_without_debugpy (ubuntu-latest, 3.9)	1m 55s
Install from SDist and Test	1m 57s
coverage	1s
tests_check	2s
	44m 24s

Provide feedback