Fix matplotlib eventloops #3679

Job	Run time
check_release	1m 59s
test_without_debugpy (ubuntu-latest, 3.10)	2m 20s
Test Prereleases	2m 29s
link_check	3m 51s
Test Lint	1m 6s
Make SDist	26s
Test Minimum Versions	3m 2s
test_docs	55s
build (ubuntu-latest, qt6, 3.10)	2m 40s
build (ubuntu-latest, qt5, pypy-3.11)	3m 56s
build (ubuntu-latest, qt6, pypy-3.11)	3m 57s
build (ubuntu-latest, qt5, 3.10)	2m 42s
build (ubuntu-latest, qt6, 3.11)	2m 55s
build (ubuntu-latest, qt6, 3.12)	2m 50s
build (ubuntu-latest, qt6, 3.13)	2m 36s
build (windows-latest, qt5, pypy-3.11)	6m 56s
build (windows-latest, qt6, 3.10)	5m 11s
build (windows-latest, qt6, 3.12)	4m 31s
build (windows-latest, qt5, 3.10)	4m 44s
build (windows-latest, qt6, 3.11)	4m 10s
build (windows-latest, qt6, pypy-3.11)	7m 48s
build (macos-latest, qt5, 3.10)	2m 44s
build (windows-latest, qt5, 3.14)	4m 21s
build (macos-latest, qt5, pypy-3.11)	4m 16s
build (macos-latest, qt5, 3.14)	3m 22s
build (windows-latest, qt6, 3.13)	4m 9s
build (macos-latest, qt6, 3.13)	2m 39s
build (macos-latest, qt6, 3.12)	3m 16s
build (macos-latest, qt6, 3.10)	3m 25s
build (ubuntu-latest, qt5, 3.14)	2m 45s
build (macos-latest, qt6, pypy-3.11)	5m 38s
build (macos-latest, qt6, 3.11)	2m 37s
Install from SDist and Test	2m 30s
coverage	16s
	1h 53m 2s

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