Backports from `anyio` (old `main`) branch to `main` branch #3422

Job	Run time
Test Lint	59s
test_without_debugpy (ubuntu-latest, 3.9)	2m 10s
check_release	1m 38s
Test Minimum Versions	2m 31s
Test Prereleases	2m 15s
Make SDist	25s
link_check	1m 54s
build (ubuntu-latest, 3.9)	5m 12s
build (ubuntu-latest, 3.12)	6m 0s
test_docs	42s
build (ubuntu-latest, 3.10)	4m 47s
build (windows-latest, 3.9)	6m 32s
build (ubuntu-latest, 3.11)	4m 54s
build (windows-latest, pypy-3.10)	7m 0s
build (windows-latest, 3.13)	7m 12s
build (windows-latest, 3.10)	6m 35s
build (macos-latest, pypy-3.10)	5m 13s
build (macos-latest, 3.12)	5m 40s
build (ubuntu-latest, pypy-3.10)	3m 50s
build (macos-latest, 3.9)	5m 16s
build (ubuntu-latest, 3.13)	4m 55s
build (windows-latest, 3.12)	7m 1s
build (macos-latest, 3.10)	4m 42s
build (macos-latest, 3.11)	4m 48s
build (windows-latest, 3.11)	6m 30s
build (macos-latest, 3.13)	5m 0s
Install from SDist and Test	2m 16s
coverage	0s
	1h 55m 57s

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