git: dd6fd39608b6..ef5bc5a1160e - vendor/tzdata - vendor branch updated

From: Philip Paeps <philip_at_FreeBSD.org>
Date: Sat, 12 Sep 2026 00:26:52 UTC
The branch vendor/tzdata has been updated by philip:

URL: https://cgit.FreeBSD.org/src/log/?id=dd6fd39608b6..ef5bc5a1160e

ef5bc5a1160e Import tzdata 2026d