git: 44bab727dfe2..c8864f6ba46f - vendor/unbound - vendor branch updated

From: Dag-Erling Smørgrav <des_at_FreeBSD.org>
Date: Sun, 07 Sep 2025 18:57:14 UTC
The branch vendor/unbound has been updated by des:

URL: https://cgit.FreeBSD.org/src/log/?id=44bab727dfe2..c8864f6ba46f

c8864f6ba46f Vendor import of Unbound 1.23.1