refactor(event_handler): correct typo in exception docstring (#4948)

fix(event_handler): correct typo in exception docstring

Co-authored-by: Leandro Damascena <[email protected]>

aws_lambda_powertools/event_handler/exceptions.py

@@ -39,7 +39,7 @@ def __init__(self, msg: str = "Not found"):
 
 
 class InternalServerError(ServiceError):
-    """API Gateway and ALB Not Found Internal Server Error (500)"""
+    """API Gateway and ALB Internal Server Error (500)"""
 
     def __init__(self, message: str):
         super().__init__(HTTPStatus.INTERNAL_SERVER_ERROR, message)