Fix youtube_id attribute for contentful card (#10448)

bedrock/contentful/templates/includes/contentful/all.html

@@ -81,7 +81,7 @@
               image_url=card_data.image_url,
               aspect_ratio=card_data.aspect_ratio,
               link_url=card_data.link,
-              youtube_id=card_data.youtube,
+              youtube_id=card_data.youtube_id,
             ) }}
 
           {% endfor %}