fix typo in model name

app.py

@@ -46,7 +46,7 @@ def get_current_time_in_timezone(timezone: str) -> str:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
 
-MODLEL = "Qwen/Qwen2.5-Coder-7B-Instruct"
+MODEL = "Qwen/Qwen2.5-Coder-7B-Instruct"
 final_answer = FinalAnswerTool()
 model = HfApiModel(
 max_tokens=2096,