[3.13] gh-129668: Fix thread-safety of MemoryError freelist in free threaded build (gh-129704)#129742

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

colesbury:backport-51b4edb-3.13colesbury/cpython:backport-51b4edb-3.13Copy head branch name to clipboard