support rimelabs tts streaming (#1047)

lib/utils/tts-streaming-buffer.js

@@ -278,6 +278,7 @@ class TtsStreamingBuffer extends Emitter {
       'deepgram',
       'cartesia',
       'elevenlabs',
+      'rimelabs',
       'custom'
     ].forEach((vendor) => {
       const eventClassName = `${vendor.charAt(0).toUpperCase() + vendor.slice(1)}TtsStreamingEvents`;