fix: Innertube.download

lib/Innertube.js

@@ -445,7 +445,7 @@ class Innertube {
       const info = await this.getInfo(video_id);
       underlying_stream = info.download(options);
       underlying_stream.pipe(stream);
-    })
+    })();
 
     stream.cancel = () => {
       underlying_stream?.cancel();