Update app.py

removed litellm as it was giving rate limit and replaced with hfapi

app.py

@@ -217,7 +217,7 @@ sanity_checker = QuestionSanityChecker(llm)
 # 7) smolagents Integration: GROQ Model and Web Search
 ###############################################################################
 # Initialize the smolagents' LiteLLMModel with GROQ model
-smol_model = LiteLLMModel("groq/llama3-8b-8192")
+smol_model = HfApiModel()
 
 # Instantiate the DuckDuckGo search tool
 search_tool = DuckDuckGoSearchTool()