Enhancement | Load whisper once, use multiple times

[aadeshkulkarni]

Current

The Python consumer will load the whisper model for every single request that it receives.
Loading the whisper model is time consuming process and it delays the time the app takes to completion execution.

Expectation

Instead of loading the whisper model at every single request, the model should be loaded once when the worker spins up.
All subsequent requests should use the loaded instance directly instead of spawning a new one.