Fix a typo in log (#49)

Fix another typo

Co-authored-by: Yazhou Cao <[email protected]>

vision_agent/agent/vision_agent.py

@@ -466,7 +466,7 @@ def chat_with_workflow(
  reflections += reflection
  # '<ANSWER>' is a symbol to indicate the end of the chat, which is useful for streaming logs.
  self.log_progress(
- f"The Vision Agent has concluded this chat. <ANSWER>{final_answer}</<ANSWER>"
+ f"The Vision Agent has concluded this chat. <ANSWER>{final_answer}</ANSWER>"
  )
  return final_answer, all_tool_results