add queue() to prevent timeouts

app.py

@@ -78,7 +78,7 @@ iface = gr.Interface(
     fn=process_image,
     inputs=gr.Image(type="pil"),  # Adjust the shape as needed
     outputs="json",  # Or any other output format that suits your needs
-)
+).queue()
 
 # Launch the Gradio app
 iface.launch()