chore: update model (#535)

Author: vishwarajanand

llm_demo/orchestrator/orchestrator.py

@@ -25,7 +25,7 @@ def __get__(self, instance, owner):
 
 
 class BaseOrchestrator(ABC):
-    MODEL = "gemini-pro"
+    MODEL = "gemini-2.0-flash-001"
 
     @classproperty
     @abstractmethod