fix: remove gr.update() call for Gradio 5 compatibility

app.py

@@ -159,7 +159,7 @@ def load_gallery(model_label: str, protection: str):
         ref_audio,
         target_audio,
         clean_clone,
-        prot_ref or gr.update(visible=False),
+        prot_ref,
         prot_clone,
         note_md,
     )