Update chat model initialization in main.py to use "qwen-qwq-32b" instead of "llama-3.3-70b-versatile".

main.py

@@ -31,7 +31,7 @@ if not os.environ.get("GROQ_API_KEY"):
 # print(f"GROQ_API_KEY: {os.getenv('GROQ_API_KEY')}")
 # print(f"HUGGING_FACE_API_KEY: {os.getenv('HUGGING_FACE_API_KEY')}")
 
-llm = init_chat_model("llama-3.3-70b-versatile", model_provider="groq", api_key=os.environ["GROQ_API_KEY"])
+llm = init_chat_model("qwen-qwq-32b", model_provider="groq", api_key=os.environ["GROQ_API_KEY"])
 '''
 embeddings = HuggingFaceInferenceAPIEmbeddings(
     api_key = os.getenv('HUGGING_FACE_API_KEY'),