write server extension list to stdout #3281

Job	Run time
Test Examples	42s
Test Lint	43s
build (ubuntu-latest, 3.9)	7m 13s
build (ubuntu-latest, 3.11)	6m 54s
build (ubuntu-latest, 3.12)	7m 30s
Test Docs	1m 11s
Check Links	2m 59s
build (windows-latest, 3.9)	11m 13s
check_release	1m 48s
build (windows-latest, 3.11)	11m 24s
build (windows-latest, 3.12)	8m 11s
integration_check (ubuntu-latest, 3.9)	2m 17s
build (macos-latest, 3.9)	5m 49s
integration_check_pypy	1m 5s
Make SDist	26s
integration_check (ubuntu-latest, 3.10)	2m 25s
build (macos-latest, 3.11)	4m 54s
integration_check (ubuntu-latest, 3.11)	2m 11s
build (macos-latest, 3.12)	5m 40s
Test Minimum Versions	5m 4s
integration_check (ubuntu-latest, 3.12)	2m 33s
build (ubuntu-latest, pypy-3.9)	11m 15s
Test Prereleases	4m 37s
build (macos-latest, 3.10)	5m 6s
Install from SDist and Test	4m 35s
coverage	14s
tests_check	2s
	1h 58m 1s

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