build(deps): bump @next/mdx from 13.4.19 to 13.5.3

Bumps [@next/mdx](https://github.com/vercel/next.js/tree/HEAD/packages/next-mdx) from 13.4.19 to 13.5.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/commits/v13.5.3/packages/next-mdx)

---
updated-dependencies:
- dependency-name: "@next/mdx"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -22,7 +22,7 @@
     "@headlessui/react": "^1.7.17",
     "@headlessui/tailwindcss": "^0.2.0",
     "@heroicons/react": "^2.0.18",
-    "@next/mdx": "^13.4.19",
+    "@next/mdx": "^13.5.3",
     "@types/node": "20.8.0",
     "@types/react": "18.2.21",
     "@types/react-dom": "18.2.8",