DOC: correctly link to WeatherModelMapping

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: MateusStano

rocketpy/environment/environment.py

@@ -2032,8 +2032,8 @@ def process_ensemble(self, file, dictionary):  # pylint: disable=too-many-locals
 
         See also
         --------
-        See the :class:``rocketpy.environment.weather_model_mapping`` for some
-        dictionary examples.
+        See the :class:`rocketpy.environment.weather_model_mapping.WeatherModelMapping`
+        class for some dictionary examples.
 
         Raises
         ------