Fixed problem with JS player URL

The JS player URL could not be found anymore, possibly because of a change on Youtubes side.

youtube_dlc/extractor/youtube.py

@@ -2051,7 +2051,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
 
                 if cipher:
                     if 's' in url_data or self._downloader.params.get('youtube_include_dash_manifest', True):
-                        ASSETS_RE = r'"assets":.+?"js":\s*("[^"]+")'
+                        ASSETS_RE = r'(?:"assets":.+?"js":\s*("[^"]+"))|(?:"jsUrl":\s*("[^"]+"))'
                         jsplayer_url_json = self._search_regex(
                             ASSETS_RE,
                             embed_webpage if age_gate else video_webpage,