Update chat model initialization in main.py to use the new "llama-3.3-70b-versatile" model and remove debug print statements for API keys.

main.py

@@ -30,10 +30,8 @@ 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')}")
-print(f"GROQ_API_KEY: {os.environ['GROQ_API_KEY']}")
-print(f"HUGGING_FACE_API_KEY: {os.environ['HUGGING_FACE_API_KEY']}")
 
-llm = init_chat_model("deepseek-r1-distill-llama-70b", model_provider="groq", api_key=os.environ["GROQ_API_KEY"])
+llm = init_chat_model("llama-3.3-70b-versatile", model_provider="groq", api_key=os.environ["GROQ_API_KEY"])
 '''
 embeddings = HuggingFaceInferenceAPIEmbeddings(
     api_key = os.getenv('HUGGING_FACE_API_KEY'),