git: 7d227f6f7a5c..18b0e604df30 - vendor/tzdata - vendor branch updated

[Philip Paeps]

The branch vendor/tzdata has been updated by philip:

URL: https://cgit.FreeBSD.org/src/log/?id=7d227f6f7a5c..18b0e604df30

18b0e604df30 Import tzdata 2026a