- Updated `SpeechmaticsSTTService` for version `0.0.99+`:
  - Fixed `SpeechmaticsSTTService` to listen for `VADUserStoppedSpeakingFrame` in order to finalize transcription.
  - Default to `TurnDetectionMode.FIXED` for Pipecat-controlled end of turn detection.
  - Only emit VAD + interruption frames if VAD is enabled within the plugin (modes other than `TurnDetectionMode.FIXED` or `TurnDetectionMode.EXTERNAL`).