[cleanup] Add more ruff rules (#10149)

Authored by: seproDev

Reviewed-by: bashonly <88596187+bashonly@users.noreply.github.com>
Reviewed-by: Simon Sawicki <contact@grub4k.xyz>

yt_dlp/extractor/webcaster.py

@@ -35,7 +35,7 @@ class WebcasterIE(InfoExtractor):
         formats = []
         for format_id in (None, 'noise'):
             track_tag = join_nonempty('track', format_id, delim='_')
-            for track in video.findall('.//iphone/%s' % track_tag):
+            for track in video.findall(f'.//iphone/{track_tag}'):
                 track_url = track.text
                 if not track_url:
                     continue