[peertube] Add extractor (closes #16301, closes #16329)

youtube_dl/extractor/extractors.py

@@ -811,6 +811,7 @@ from .parliamentliveuk import ParliamentLiveUKIE
 from .patreon import PatreonIE
 from .pbs import PBSIE
 from .pearvideo import PearVideoIE
+from .peertube import PeerTubeIE
 from .people import PeopleIE
 from .performgroup import PerformGroupIE
 from .periscope import (