[extractor/cbc] Ignore 426 from API (#6781)

Closes #6716
Authored by: jo-nike

yt_dlp/extractor/cbc.py

@@ -351,7 +351,9 @@ class CBCGemIE(InfoExtractor):
 
     def _real_extract(self, url):
         video_id = self._match_id(url)
-        video_info = self._download_json('https://services.radio-canada.ca/ott/cbc-api/v2/assets/' + video_id, video_id)
+        video_info = self._download_json(
+            f'https://services.radio-canada.ca/ott/cbc-api/v2/assets/{video_id}',
+            video_id, expected_status=426)
 
         email, password = self._get_login_info()
         if email and password:
@@ -426,7 +428,7 @@ class CBCGemPlaylistIE(InfoExtractor):
         match = self._match_valid_url(url)
         season_id = match.group('id')
         show = match.group('show')
-        show_info = self._download_json(self._API_BASE + show, season_id)
+        show_info = self._download_json(self._API_BASE + show, season_id, expected_status=426)
         season = int(match.group('season'))
 
         season_info = next((s for s in show_info['seasons'] if s.get('season') == season), None)