Implement the new TTS file formats

[GunniBusch]

Confirm this is an issue with the Python library and not an underlying OpenAI API

• This is an issue with the Python library

Describe the bug

The speech api implementation is not up to date.
It doesn’t yet support the new Output formats like WAV
openai/openai-openapi#202

To Reproduce

1. Create a speech request
2. Try to use e.g. wav as the media type.

Code snippets

https://github.com/openai/openai-python/blob/a7115b5f33acd27326e5f78e19beb0d73bd3268e/src/openai/types/audio/speech_create_params.py#L29

OS

macOS

Python version

v3.11.3

Library version

v1.13.2

[microsoftbuild]

This is strange. I have been using client.audio.speech.with_streaming_response.create() with the response_format= "wav" without any issues.

openai package v1.8.0
python version 3.11.7

[rattrayalex]

This is done: #1189