The model text-davinci-003 has been deprecated

```
InvalidRequestError: The model `text-davinci-003` has been deprecated, learn more here: https://platform.openai.com/docs/deprecations
```

This affects
https://github.com/whylabs/langkit/blob/main/langkit/examples/Langchain_OpenAI_LLM_Monitoring_with_WhyLabs.ipynb
https://github.com/whylabs/langkit/blob/main/langkit/examples/Proactive_Injection_Detection.ipynb
