Enable ProactorEventLoop on windows for ipykernel #4205

Job	Run time
link_check	3m 48s
Test Prereleases	2m 42s
test_without_debugpy (ubuntu-latest, 3.10)	2m 18s
Test Minimum Versions	2m 43s
check_release	1m 52s
Make SDist	23s
test_docs	54s
Test Lint	59s
build (ubuntu-latest, qt5, 3.14)	2m 42s
build (ubuntu-latest, qt6, 3.13)	2m 45s
build (ubuntu-latest, qt6, 3.12)	2m 47s
build (ubuntu-latest, qt6, 3.11)	2m 32s
build (ubuntu-latest, qt6, pypy-3.11)	3m 17s
build (ubuntu-latest, qt5, pypy-3.11)	3m 25s
build (ubuntu-latest, qt6, 3.10)	2m 51s
build (ubuntu-latest, qt5, 3.10)	2m 45s
build (windows-latest, qt6, 3.11)	4m 35s
build (macos-latest, qt6, 3.13)	3m 11s
build (macos-latest, qt5, pypy-3.11)	5m 19s
build (windows-latest, qt6, pypy-3.11)	5m 41s
build (windows-latest, qt5, 3.10)	3m 54s
build (macos-latest, qt5, 3.10)	2m 44s
build (windows-latest, qt5, 3.14)	3m 38s
build (macos-latest, qt6, 3.10)	3m 28s
build (windows-latest, qt6, 3.13)	4m 28s
build (macos-latest, qt6, 3.11)	2m 58s
build (windows-latest, qt6, 3.12)	3m 55s
build (windows-latest, qt5, pypy-3.11)	5m 10s
build (macos-latest, qt5, 3.14)	2m 40s
build (macos-latest, qt6, pypy-3.11)	4m 10s
build (macos-latest, qt6, 3.12)	2m 50s
build (windows-latest, qt6, 3.10)	4m 1s
Install from SDist and Test	2m 27s
coverage	13s
	1h 44m 5s

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