Commit d641a9f3bce for php.net

commit d641a9f3bce7472204208d6487d8443e4183e8ee
Merge: 7aa6c496932 61a1b9afd6d
Author: Ilia Alshanetsky <ilia@ilia.ws>
Date:   Thu Jun 11 07:40:09 2026 -0400

    Merge branch 'PHP-8.4' into PHP-8.5

    * PHP-8.4:
      mbstring: Fix memory leak in mail header parsing