git: c8864f6ba46f..0064eb9cf1c8 - vendor/unbound - vendor branch updated

[Cy Schubert]

The branch vendor/unbound has been updated by cy:

URL: https://cgit.FreeBSD.org/src/log/?id=c8864f6ba46f..0064eb9cf1c8

0064eb9cf1c8 unbound: Vendor import 1.24.0