chore: remove redundant docs

Co-authored-by: Heitor Lessa <heitor.lessa@hotmail.com>

Author: Michael Brewer

aws_lambda_powertools/event_handler/api_gateway.py

@@ -733,7 +733,7 @@ def register_route(func: Callable):
         return register_route
 
 
-class APIGatewayProxyEventResolver(ApiGatewayResolver):
+class APIGatewayRestResolver(ApiGatewayResolver):
     current_event: APIGatewayProxyEvent
 
     def __init__(