Update app.py

change a ";" to ","

app.py

@@ -21,7 +21,7 @@ def get_llm():
         task="text-generation",
         max_new_tokens=512,
         temperature=0.1,
-        huggingfacehub_api_token=os.getenv("HF_TOKEN");
+        huggingfacehub_api_token=os.getenv("HF_TOKEN"),
         max_retries=3, 
         timeout=30     
     )