Update app.py

app.py

@@ -150,7 +150,7 @@ async def yt_audio(url: str):
             },
             "videoId": videoId
         }
-        Player_Url = https://www.youtube.com/youtubei/v1/player?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8&prettyPrint=false
+        Player_Url = "https://www.youtube.com/youtubei/v1/player?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8&prettyPrint=false"
 
         # 发送请求
         logging.info(f"Sending request to URL: {url} with video ID: {videoId}")