Improve performance of speech to text module

[fabricerenard12]

We are currently using OpenAI's original Whisper model, but we should explore forks that may offer better speed or accuracy.
A good starting point:
https://github.com/SYSTRAN/faster-whisper
https://github.com/huggingface/transformers
https://github.com/Vaibhavs10/insanely-fast-whisper
https://github.com/sanchit-gandhi/whisper-jax
https://github.com/huggingface/distil-whisper