fixed gradio flagging error

app.py

@@ -71,7 +71,7 @@ demo = gr.Interface(
         ["Please update the shipping address for Jane Smith to 123 Secure Lane. Her phone number is 555-0198."],
         ["The patient, Michael Johnson, was born on 10/12/1985. His SSN is 000-11-2222."]
     ],
-    allow_flagging="never" # Turns off the "Flag" button since we don't need to collect user data
+    flagging_mode="never" # Turns off the "Flag" button since we don't need to collect user data
 )
 
 # 4. Launch the app