Upgrade yt_dlp and download script

plugins/youtube_download/yt_dlp/extractor/libsyn.py

@@ -18,7 +18,7 @@ class LibsynIE(InfoExtractor):
         'info_dict': {
             'id': '6385796',
             'ext': 'mp3',
-            'title': "Champion Minded - Developing a Growth Mindset",
+            'title': 'Champion Minded - Developing a Growth Mindset',
             # description fetched using another request:
             # http://html5-player.libsyn.com/embed/getitemdetails?item_id=6385796
             # 'description': 'In this episode, Allistair talks about the importance of developing a growth mindset, not only in sports, but in life too.',
@@ -34,7 +34,7 @@ class LibsynIE(InfoExtractor):
             'title': 'Clients From Hell Podcast - How a Sex Toy Company Kickstarted my Freelance Career',
             'upload_date': '20150818',
             'thumbnail': 're:^https?://.*',
-        }
+        },
     }]
 
     def _real_extract(self, url):
@@ -56,7 +56,7 @@ class LibsynIE(InfoExtractor):
             r'<h3>([^<]+)</h3>', webpage, 'podcast title',
             default=None) or get_element_by_class('podcast-title', webpage)))
 
-        title = '%s - %s' % (podcast_title, episode_title) if podcast_title else episode_title
+        title = f'{podcast_title} - {episode_title}' if podcast_title else episode_title
 
         formats = []
         for k, format_id in (('media_url_libsyn', 'libsyn'), ('media_url', 'main'), ('download_link', 'download')):