add clean cache

app.py

@@ -619,7 +619,7 @@ def demo_lhm(pose_estimator, face_detector, lhm, cfg):
         <strong>Reconstruct a human avatar in 0.2 seconds with A100!</strong>
     '''
 
-    with gr.Blocks(analytics_enabled=False) as demo:
+    with gr.Blocks(analytics_enabled=False, delete_cache=[3600,3600]) as demo:
 
         # </div>
         logo_url = "./assets/rgba_logo_new.png"