build(deps): bump @hashicorp/react-code-block in /website

Bumps [@hashicorp/react-code-block](https://github.com/hashicorp/react-components/tree/HEAD/packages/code-block) from 4.1.5 to 6.7.0.
- [Release notes](https://github.com/hashicorp/react-components/releases)
- [Changelog](https://github.com/hashicorp/react-components/blob/main/packages/code-block/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/react-components/commits/@hashicorp/[email protected]/packages/code-block)

---
updated-dependencies:
- dependency-name: "@hashicorp/react-code-block"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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