[ie/ArteTV] Fix HLS formats extraction

Closes #8156
Authored by: bashonly

yt_dlp/extractor/arte.py

@@ -169,7 +169,7 @@ def _real_extract(self, url):
                 )))
 
             short_label = traverse_obj(stream_version, 'shortLabel', expected_type=str, default='?')
-            if stream['protocol'].startswith('HLS'):
+            if 'HLS' in stream['protocol']:
                 fmts, subs = self._extract_m3u8_formats_and_subtitles(
                     stream['url'], video_id=video_id, ext='mp4', m3u8_id=stream_version_code, fatal=False)
                 for fmt in fmts: