Ensure IPython's HistoryManager threads don't leak #3105

Job	Run time
check_release	1m 52s
test_docs	36s
build (ubuntu-latest, 3.9)	4m 44s
Test Lint	1m 6s
build (ubuntu-latest, 3.10)	4m 39s
Test Prereleases	1m 54s
test_without_debugpy (ubuntu-latest, 3.9)	1m 52s
build (ubuntu-latest, 3.11)	4m 33s
build (ubuntu-latest, 3.12)	6m 33s
build (ubuntu-latest, 3.13)	5m 34s
build (ubuntu-latest, pypy-3.9)	4m 31s
build (ubuntu-latest, pypy-3.10)	3m 50s
build (windows-latest, 3.9)	6m 36s
build (windows-latest, 3.10)	7m 56s
link_check	3m 26s
build (windows-latest, 3.11)	8m 36s
Make SDist	27s
Test Minimum Versions	2m 26s
build (windows-latest, 3.12)	7m 53s
build (windows-latest, 3.13)	8m 38s
build (windows-latest, pypy-3.9)	7m 28s
build (windows-latest, pypy-3.10)	7m 42s
build (macos-latest, 3.9)	5m 11s
build (macos-latest, 3.10)	4m 47s
build (macos-latest, 3.11)	4m 10s
build (macos-latest, 3.12)	6m 24s
build (macos-latest, 3.13)	5m 44s
build (macos-latest, pypy-3.9)	4m 44s
build (macos-latest, pypy-3.10)	4m 38s
Install from SDist and Test	2m 5s
coverage	0s
	2h 20m 35s

Provide feedback