Commit d5f4c4351a7 for php.net

commit d5f4c4351a76e44b4916f50348a1526e8c7f4215
Merge: a231da8d288 49dbac9a118
Author: David Carlier <devnexen@gmail.com>
Date:   Tue Mar 31 22:28:00 2026 +0100

    Merge branch 'PHP-8.5'

    * PHP-8.5:
      Fix GH-21548: Dom\XMLDocument::C14N() emits duplicate xmlns declarations after setAttributeNS().