Wetterdienst

Fix
- Fix `state` column in station list creation for DWD Observation

Refactor
- Make fastexcel non-optional
- Remove upper dependency bounds

Feature
- DWD Road: Add new station groups, log warning if no data is available, especially if the station group is one of the temporarily unavailable ones

Fix
- Explorer: Fix DWD Mosmix request kwargs setup

Fix
- Fix multiple Geosphere parameter and unit enums
- Explorer: Fix wrap `(parameter, dataset)` in iterator
- Adjust parameter typing of apis

Refactor
- Rename parameters
- units in parameter names are now directly following the number
- temperature parameters now use meter instead of cm and also have a unit
- e.g. TEMPERATURE_AIR_MEAN_2M, CLOUD_COVER_BETWEEN_2KM_TO_7KM, PROBABILITY_PRECIPITATION_HEIGHT_GT_0_0MM_LAST_6H

Fix
- Bump pyarrow version to <18
- Fix EaHydrology station list parsing
- Rename `EaHydrology` to `EAHydrology`
- Fix propagation of settings through `EAHydrology` values

Fix
- Fix DWD Road api