[3.10] gh-99578: Fix refleak in _imp.create_builtin() (GH-99642)#99644

miss-islington merged 1 commit intopython:3.10python/cpython:3.10from

miss-islington:backport-cb2ef8b-3.10miss-islington/cpython:backport-cb2ef8b-3.10Copy head branch name to clipboard