[3.13] gh-135871: Fix needless spinning in `_PyMutex_LockTimed` with zero timeout (gh-135872)#135947

colesbury merged 1 commit intopython:3.13python/cpython:3.13from

colesbury:backport-cbfaf41-3.13colesbury/cpython:backport-cbfaf41-3.13Copy head branch name to clipboard