fix: Remove trailing whitespace from open_meteo.py line 102 (W293) (#340)

Author: Raakshass

quartz_solar_forecast/weather/open_meteo.py

@@ -99,7 +99,7 @@ def _validate_date_format(self, start_date: str, end_date: str) -> None:
             raise ValueError(
                 f"Invalid date format. Please use YYYY-MM-DD format. Error: {str(e)}"
             ) from e
-        
+
         if not (end_datetime > start_datetime):
             raise ValueError(
                 f"Invalid date range. End date ({end_date}) must be greater than "