git: 26fd3d5616df..ab1f1aa83333 - vendor/ntp - vendor branch updated

From: Cy Schubert <cy_at_FreeBSD.org>
Date: Tue, 06 Jun 2023 12:27:46 UTC
The branch vendor/ntp has been updated by cy:

URL: https://cgit.FreeBSD.org/src/log/?id=26fd3d5616df..ab1f1aa83333

ab1f1aa83333 ntp: import ntp-4.2.8p17