Soniox TTS Support

[0xgalw]

Feature Type

I cannot use LiveKit without it

Feature Description

Hi!

Please add add support for Soniox as a TTS provider (not only STT).

see: https://soniox.com/docs/tts/rt/real-time-generation

Workarounds / Alternatives

No response

Additional Context

No response

[matejmarinko-soniox]

We added a TTS plugin in this PR, but it's still waiting for review: #5543