[3.12] gh-126991: Fix reference leak in loading pickle's opcode BUILD (GH-126990)#127019

serhiy-storchaka merged 1 commit intopython:3.12python/cpython:3.12from

miss-islington:backport-29cbcbd-3.12miss-islington/cpython:backport-29cbcbd-3.12Copy head branch name to clipboard