DateTime.fromFormat on the DST switch day

Describe the bug Using DateTime.fromFormat('02:30', 'hh:mm') returns an unexpectedly valid result even if it is not when doing it on the day of DST change (2026-03-29 in Europe e.g.) for a time to parse that just doesn't exist. Instead it silently shifts the hour by the difference of the zone offset.

To Reproduce DateTime.fromFormat('02:30', 'hh:mm').isValid returns true when executed in Europe/Berlin timezone on 2026-03-29. DateTime.fromFormat('02:30', 'hh:mm').hour returns 3

Actual vs Expected behavior DateTime.fromFormat('02:30', 'hh:mm').isValid should return false when executed in Europe/Berlin timezone on 2026-03-29.

Desktop (please complete the following information):

• OS: Ubuntu 24.04
• Browser: irrelevant
• Luxon version: 3.7.2
• Your timezone: Europe/Berlin

Additional context nothing to add here