refactor(event_handler): fix BedrockAgentResolver docstring (#3645)

Fixing docs

Author: leandrodamascena

aws_lambda_powertools/event_handler/bedrock_agent.py

@@ -66,6 +66,8 @@ def simple_get():
     @tracer.capture_lambda_handler
     def lambda_handler(event, context):
         return app.resolve(event, context)
+    ```
+
     """
 
     current_event: BedrockAgentEvent