chore(deps): update dependency openai to v1.35.15

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
openai	==1.35.14 -> ==1.35.15

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Release Notes

openai/openai-python (openai)

### [`v1.35.15`](https://togithub.com/openai/openai-python/blob/HEAD/CHANGELOG.md#13515-2024-07-18) [Compare Source](https://togithub.com/openai/openai-python/compare/v1.35.14...v1.35.15) Full Changelog: [v1.35.14...v1.35.15](https://togithub.com/openai/openai-python/compare/v1.35.14...v1.35.15) ##### Chores - **docs:** document how to do per-request http client customization ([#​1560](https://togithub.com/openai/openai-python/issues/1560)) ([24c0768](https://togithub.com/openai/openai-python/commit/24c076873c5cb2abe0d3e285b99aa110451b0f19)) - **internal:** update formatting ([#​1553](https://togithub.com/openai/openai-python/issues/1553)) ([e1389bc](https://togithub.com/openai/openai-python/commit/e1389bcc26f3aac63fc6bc9bb151c9a330d95b4e))

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