git: 18b0e604df30..def146fe2a3e - vendor/tzdata - vendor branch updated

From: Philip Paeps <philip_at_FreeBSD.org>
Date: Thu, 23 Apr 2026 15:04:22 UTC
The branch vendor/tzdata has been updated by philip:

URL: https://cgit.FreeBSD.org/src/log/?id=18b0e604df30..def146fe2a3e

def146fe2a3e Import tzdata 2026b