build(deps-dev): bump openai in the npm-development group (#257)

Bumps the npm-development group with 1 update: [openai](https://github.com/openai/openai-node).


Updates `openai` from 5.15.0 to 5.16.0
- [Release notes](https://github.com/openai/openai-node/releases)
- [Changelog](https://github.com/openai/openai-node/blob/master/CHANGELOG.md)
- [Commits](openai/openai-node@v5.15.0...v5.16.0)

---
updated-dependencies:
- dependency-name: openai
  dependency-version: 5.16.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: npm-development
...

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Author: dependabot[bot]