[Contribution Request] Remove text-davinci-003 model usage in example

[brynn-code]

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text-davinci-003 is deprecated by openai and we should remove it out from examples.

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Note: AzureOpenAI resource model has name 'gpt-35-turbo', which is different from 'gpt-3.5-turbo' in openai.

[github-actions]

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