git: 292d51198aa3..16fd0b249104 - vendor/unbound - vendor branch updated

From: Cy Schubert <cy_at_FreeBSD.org>
Date: Mon, 13 Nov 2023 19:46:18 UTC
The branch vendor/unbound has been updated by cy:

URL: https://cgit.FreeBSD.org/src/log/?id=292d51198aa3..16fd0b249104

16fd0b249104 unbound: Vendor import 1.19.0