ipykernel tests #1818

Job	Run time
Make SDist	37s
build (ubuntu-latest, 3.8)	15m 32s
build (ubuntu-latest, 3.11)	4m 10s
build (windows-latest, 3.8)	9m 35s
build (windows-latest, 3.11)	17m 7s
build (macos-latest, 3.8)	10m 16s
build (macos-latest, 3.11)	14m 40s
build (windows-latest, 3.9)	9m 26s
build (ubuntu-latest, pypy-3.8)	4m 58s
build (macos-latest, 3.10)	9m 10s
link_check	2m 30s
check_release	3m 0s
test_docs	2m 46s
Test Lint	1m 12s
Test Minimum Versions	20m 12s
Test Prereleases	20m 13s
test_without_debugpy (ubuntu-latest, 3.9)	6m 34s
Install from SDist and Test	7m 17s
coverage	0s
tests_check	2s
	2h 39m 17s

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