chore: update agent_session.py (#4186)

openhands/server/session/agent_session.py

@@ -63,7 +63,7 @@ class AgentSession:
         - runtime_name: The name of the runtime associated with the session
         - config:
         - agent:
-        - max_interations:
+        - max_iterations:
         - max_budget_per_task:
         - agent_to_llm_config:
         - agent_configs: