Commit 1bbb77c0f1 for frr

commit 1bbb77c0f1d843b04bdf083390d07cdf4f88546c
Merge: 61d0a68e68 091a40a1ce
Author: Russ White <russ@riw.us>
Date:   Thu Oct 29 13:32:17 2026 -0400

    Merge pull request #23783 from opensourcerouting/fix/bgp_include_datalen_in_notification

    bgpd: Include the length that is unexpected when parsing OPEN message