gh-148286: Fail on new UB in CI#148168

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StanFromIreland merged 11 commits intopython:mainfrom

StanFromIreland:san-ubsan

Apr 9, 2026

Commits on Apr 8, 2026

Skip `test_faulthandler` too, and oh hey, I fixed that one!
StanFromIreland
committed

Commits on Apr 9, 2026

Merge branch 'main' into san-ubsan
StanFromIreland
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