docs(eval): fix 'Coverts' typo in RubricBasedToolUseV1Evaluator docstring

Author: anxkhn

src/google/adk/evaluation/rubric_based_tool_use_quality_v1.py

@@ -130,7 +130,7 @@ class RubricBasedToolUseV1Evaluator(RubricBasedEvaluator):
   """An Evaluator for rubric based assessment of the agent's usage of Tools.
 
   Example: Lets take an example of a Weather Agent that has access to two tools:
-  1: GeoCoding Tool: Coverts a city name, address or zip code into geographic
+  1: GeoCoding Tool: Converts a city name, address or zip code into geographic
   coordinates.
   2: GetWeather Tool: Gets weather for the next 10 days for the given geographic
   coordinates.