chore(deps-npm): bump @docsearch/react from 3.9.0 to 4.2.0

Bumps [@docsearch/react](https://github.com/algolia/docsearch/tree/HEAD/packages/docsearch-react) from 3.9.0 to 4.2.0.
- [Release notes](https://github.com/algolia/docsearch/releases)
- [Changelog](https://github.com/algolia/docsearch/blob/main/CHANGELOG.md)
- [Commits](https://github.com/algolia/docsearch/commits/v4.2.0/packages/docsearch-react)

---
updated-dependencies:
- dependency-name: "@docsearch/react"
  dependency-version: 4.2.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]