chore(deps-dev): bump openai in /packages/opentelemetry-node

Bumps [openai](https://github.com/openai/openai-node) from 4.76.3 to 4.78.1.
- [Release notes](https://github.com/openai/openai-node/releases)
- [Changelog](https://github.com/openai/openai-node/blob/master/CHANGELOG.md)
- [Commits](openai/openai-node@v4.76.3...v4.78.1)

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

Signed-off-by: dependabot[bot] <[email protected]>