Merge release/2.16.0 to main (#84)

* add list voices support to tts client (#78)

add --list-voices parameter to tts client to query supported voices

* Add ASR endpointing stop_threshold_eou parameter (#83)

* Exposing the 'stop_historu_eou_th' parameter

* updating submodule

* Updating param name

* Updating help for VAD param

* Adding check for stop_threshold_eou

* Updating proto branch

* updating the submodule

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Co-authored-by: Viraj Karandikar <16838694+virajkarandikar@users.noreply.github.com>
Co-authored-by: sarane22 <118975230+sarane22@users.noreply.github.com>