[3.13] gh-144363: Update bundled libexpat to 2.7.4 (GH-144365)#144500

encukou merged 4 commits intopython:3.13python/cpython:3.13from

miss-islington:backport-d5cb9f6-3.13miss-islington/cpython:backport-d5cb9f6-3.13Copy head branch name to clipboard