* Handle UpdateLocalAudioTrack and UpdateLocalVideoTrack.
- Update the TrackInfo
- NOTE: populating Stereo and DisableDtx fields although there are
features now.
- The audio features in UpdateLocalAudioTrack is applied as is,
i. e. the update has the latest set of features.
- Emits a track update which will broadcast a participant update.
TODO:
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- Telemetry event with track update?
* update deps