git: 9b8db746ac60..0a6d797cf6eb - vendor/unbound - vendor branch updated

From: Cy Schubert <cy_at_FreeBSD.org>
Date: Fri, 18 Oct 2024 13:54:47 UTC
The branch vendor/unbound has been updated by cy:

URL: https://cgit.FreeBSD.org/src/log/?id=9b8db746ac60..0a6d797cf6eb

0a6d797cf6eb unbound: Vendor import 1.20.0