Log track info when media published. (#2306)

With pending track added moved to Debugw, will be good to have this when
track is published.

pkg/rtc/participant.go

@@ -1341,6 +1341,7 @@ func (p *ParticipantImpl) onMediaTrack(track *webrtc.TrackRemote, rtpReceiver *w
 		"rid", track.RID(),
 		"SSRC", track.SSRC(),
 		"mime", track.Codec().MimeType,
+		"trackInfo", logger.Proto(publishedTrack.ToProto()),
 	)
 
 	if !isNewTrack && !publishedTrack.HasPendingCodec() && p.IsReady() {