Deprecation of text-davinci-003

[Besarb]

Describe the bug
When connecting to OpenAI API, the following error is shown APIErrorResponse(error: OpenAI.APIError(message: "The model `text-davinci-003` has been deprecated, learn more here: https://platform.openai.com/docs/deprecations", type: "invalid_request_error", param: nil, code: Optional("model_not_found"))).
"text-davinci-003" is indeed deprecated since January 4th 2024, see https://platform.openai.com/docs/deprecations.

To Reproduce
Try to connect to Open AI API using the latest version 0.2.5.

[iamyoungjo]

I think we need to have gpt-3.5-turbo-instruct supported.

[SunburstEnzo]

Yep can confirm, please pass in the raw value until support is added
#145 (comment)

[kalafus]

Options:
#166 updates the model, adds a deprecation warning.
#160 removes the model (due to frequent return of truncated responses; while the endpoint technically remains operational, i'm not sure what purposes it could still be useful for in its present state).