build(deps-dev): bump @docsearch/js from 3.9.0 to 5.0.0 (#473)

Bumps [@docsearch/js](https://github.com/algolia/docsearch/tree/HEAD/packages/docsearch-js) from 3.9.0 to 5.0.0.
- [Release notes](https://github.com/algolia/docsearch/releases)
- [Changelog](https://github.com/algolia/docsearch/blob/main/packages/docsearch-js/CHANGELOG.md)
- [Commits](https://github.com/algolia/docsearch/commits/@docsearch/js@5.0.0/packages/docsearch-js)

---
updated-dependencies:
- dependency-name: "@docsearch/js"
  dependency-version: 5.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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