Bump prism-react-renderer from 1.2.1 to 1.3.1 in /packages/website

Bumps [prism-react-renderer](https://github.com/FormidableLabs/prism-react-renderer) from 1.2.1 to 1.3.1.
- [Release notes](https://github.com/FormidableLabs/prism-react-renderer/releases)
- [Commits](https://github.com/FormidableLabs/prism-react-renderer/compare/v1.2.1...v1.3.1)

---
updated-dependencies:
- dependency-name: prism-react-renderer
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

packages/website/package.json

@@ -13,7 +13,7 @@
     "@docusaurus/preset-classic": "2.0.0-beta.17",
     "@mdx-js/react": "^1.6.21",
     "clsx": "^1.1.1",
-    "prism-react-renderer": "^1.2.1",
+    "prism-react-renderer": "^1.3.1",
     "react": "^17.0.1",
     "react-dom": "^17.0.1"
   },