2026.5.0

The RQ product has been discontinued by the DWD and is replaced by the RS product in the HDF5 format.

What's Changed

• Replace the RQ with the RS product by @Hoffmann77 in #7
• Bump actions/checkout from 4 to 6 by @dependabot[bot] in #2

Breaking changes

• The old sensors (now, +1h, +2h) are replaced by new ones and can be safely deleted in Homeassistant.

Full Changelog: 2025.8.0...2026.5.0