Update app.py

Added tools correctly.

app.py

@@ -91,7 +91,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[final_answer], [get_temperature], [get_current_time_in_timezone],
+    tools=[final_answer, get_temperature, get_current_time_in_timezone],
     max_steps=6,
     verbosity_level=1,
     grammar=None,