git: 0c57cb21e0c6..4891157c57cc - vendor/ldns - vendor branch updated

From: Dag-Erling Smørgrav <des_at_FreeBSD.org>
Date: Wed, 15 May 2024 10:16:04 UTC
The branch vendor/ldns has been updated by des:

URL: https://cgit.FreeBSD.org/src/log/?id=0c57cb21e0c6..4891157c57cc

4891157c57cc Fix bug in upstream PR 238.