Test more python versions on 6.x branch #3377

Job	Run time
Test Lint	1m 5s
Test Minimum Versions	2m 31s
Test Prereleases	2m 9s
link_check	3m 34s
Make SDist	21s
test_docs	42s
check_release	1m 49s
test_without_debugpy (ubuntu-latest, 3.9)	2m 19s
build (ubuntu-latest, 3.10)	4m 52s
build (ubuntu-latest, 3.9)	4m 51s
build (ubuntu-latest, 3.12)	5m 56s
build (ubuntu-latest, pypy-3.9)	4m 24s
build (ubuntu-latest, 3.13)	5m 2s
build (windows-latest, 3.9)	7m 28s
build (windows-latest, 3.10)	6m 24s
build (ubuntu-latest, 3.11)	4m 56s
build (windows-latest, 3.11)	8m 22s
build (windows-latest, 3.13)	7m 26s
build (macos-latest, 3.10)	5m 8s
build (windows-latest, 3.12)	7m 18s
build (ubuntu-latest, pypy-3.10)	4m 7s
build (macos-latest, pypy-3.9)	5m 2s
build (macos-latest, 3.12)	5m 53s
build (macos-latest, 3.13)	5m 4s
build (macos-latest, pypy-3.10)	4m 41s
build (windows-latest, pypy-3.9)	6m 43s
build (macos-latest, 3.11)	4m 24s
build (macos-latest, 3.9)	5m 14s
build (windows-latest, pypy-3.10)	8m 39s
Install from SDist and Test	2m 21s
coverage	1s
	2h 18m 46s

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