chore(deps): bump @mdx-js/react from 3.1.0 to 3.1.1 in /site (#1351)

Bumps [@mdx-js/react](https://github.com/mdx-js/mdx/tree/HEAD/packages/react) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/mdx-js/mdx/releases)
- [Changelog](https://github.com/mdx-js/mdx/blob/main/changelog.md)
- [Commits](https://github.com/mdx-js/mdx/commits/3.1.1/packages/react)

---
updated-dependencies:
- dependency-name: "@mdx-js/react"
  dependency-version: 3.1.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

site/package-lock.json

@@ -20,7 +20,7 @@
   "dependencies": {
     "@docusaurus/core": "^3.7.0",
     "@docusaurus/preset-classic": "^3.8.1",
-    "@mdx-js/react": "^3.1.0",
+    "@mdx-js/react": "^3.1.1",
     "clsx": "^2.1.1",
     "prism-react-renderer": "^2.4.1",
     "react": "^19.1.0",