Update app.py

app.py

@@ -175,7 +175,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
         outputs=run_button
     )
 
-     async def update_video_embed(youtube_url):
+    def update_video_embed(youtube_url):
         if youtube_url:
             try:
                 video_id = await fetch_youtube_id(youtube_url)