Increase max steps to take to 30

Increase `max_steps` from 6 to 30 because the agent might need to
* visit multiple websites
* try multiple times until it understands how to interpret the data from a website.

app.py

@@ -73,7 +73,7 @@ with open("prompts.yaml", 'r') as stream:
 agent = CodeAgent(
     model=model,
     tools=[final_answer, search_tool, get_website_content, get_papers_url_for_date, get_current_time_in_timezone],
-    max_steps=6,
+    max_steps=30,
     verbosity_level=1,
     grammar=None,
     planning_interval=None,