fixup! ✨(backend) add metadata collection of VAD, connection and chat events

Author: lebaudantoine

src/agents/metadata_collector.py

@@ -156,9 +156,7 @@ async def on_chat_message_received(
     ):
         """Read a complete chat message and record it as an event."""
         full_text = await reader.read_all()
-        logger.info(
-            "Received chat message from %s", participant_identity
-        )
+        logger.info("Received chat message from %s", participant_identity)
 
         self.events.append(
             MetadataEvent(