Backports from `anyio` (old `main`) branch to `main` branch #3425

Job	Run time
test_without_debugpy (ubuntu-latest, 3.9)	2m 12s
Test Prereleases	2m 20s
link_check	3m 47s
test_docs	45s
Make SDist	41s
check_release	1m 37s
Test Minimum Versions	2m 30s
build (ubuntu-latest, 3.10)	4m 55s
Test Lint	56s
build (ubuntu-latest, 3.11)	4m 55s
build (ubuntu-latest, 3.12)	6m 2s
build (windows-latest, 3.9)	6m 50s
build (ubuntu-latest, pypy-3.10)	3m 55s
build (ubuntu-latest, 3.9)	5m 1s
build (ubuntu-latest, 3.13)	5m 19s
build (windows-latest, pypy-3.10)	6m 40s
build (macos-latest, 3.9)	5m 29s
build (windows-latest, 3.12)	7m 28s
build (macos-latest, pypy-3.10)	4m 34s
build (windows-latest, 3.13)	9m 6s
build (windows-latest, 3.10)	6m 49s
build (macos-latest, 3.13)	5m 2s
build (macos-latest, 3.10)	5m 9s
build (windows-latest, 3.11)	6m 39s
build (macos-latest, 3.11)	4m 56s
build (macos-latest, 3.12)	6m 13s
Install from SDist and Test	2m 8s
coverage	12s
	2h 2m 10s

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