Add twilio to pyproject.toml, update demo to use twilio option

examples/twilio-chatbot/requirements.txt

@@ -1,5 +1,4 @@
-pipecat-ai[cartesia,openai,silero,deepgram]
-fastapi
+pipecat-ai[cartesia,openai,silero,deepgram,twilio]
 uvicorn
 python-dotenv
 loguru

pyproject.toml

@@ -86,6 +86,7 @@ simli = [ "simli-ai~=0.1.10"]
 soundfile = [ "soundfile~=0.13.0" ]
 tavus=[]
 together = []
+twilio = [ "fastapi~=0.115.6", "twilio~=9.5.2"]
 ultravox = [ "transformers~=4.48.0", "vllm~=0.7.3" ]
 webrtc = [ "aiortc~=1.11.0", "opencv-python~=4.11.0.86" ]
 websocket = [ "websockets~=13.1", "fastapi~=0.115.6" ]