Deprecation of TextDavinci003Engine Model

[pradytpk]

For the text completions of openai the following models are deprecated as of 2024-01-04

TextAda001Engine     = "text-ada-001"
TextBabbage001Engine = "text-babbage-001"
TextCurie001Engine   = "text-curie-001"
TextDavinci001Engine = "text-davinci-001"
TextDavinci002Engine = "text-davinci-002"
TextDavinci003Engine = "text-davinci-003"

Reference
https://platform.openai.com/docs/deprecations/instructgpt-models

Currently supported model is "gpt-3.5-turbo-instruct"