fix plugin for bilibili to adapt the new API
fix plugin for bilibili to adapt the new API

wlerin/streamlink,back-to/streamlink,gravyboat/streamlink,wlerin/streamlink,back-to/streamlink,chhe/streamlink,beardypig/streamlink,chhe/streamlink,streamlink/streamlink,bastimeyer/streamlink,melmorabity/streamlink,streamlink/streamlink,beardypig/streamlink,javiercantero/streamlink,melmorabity/streamlink,gravyboat/streamlink,bastimeyer/streamlink,javiercantero/streamlink