chore: update app.py for zero gpu

app.py

@@ -16,6 +16,7 @@ import dataclasses
 
 import gradio as gr
 import torch
+import spaces
 
 from uno.flux.pipeline import UNOPipeline
 
@@ -26,6 +27,7 @@ def create_demo(
     offload: bool = False,
 ):
     pipeline = UNOPipeline(model_type, device, offload, only_lora=True, lora_rank=512)
+    pipeline.__call__ = spaces.GPU(duratioin=120)(pipeline.__call__)
 
     with gr.Blocks() as demo:
         gr.Markdown(f"# UNO by UNO team")