build(deps): bump prism-react-renderer from 1.2.0 to 1.2.1 in /docs

Bumps [prism-react-renderer](https://github.com/FormidableLabs/prism-react-renderer) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/FormidableLabs/prism-react-renderer/releases)
- [Commits](FormidableLabs/prism-react-renderer@v1.2.0...v1.2.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]