chore(deps): bump fumadocs-mdx from 14.2.14 to 14.3.1

Bumps [fumadocs-mdx](https://github.com/fuma-nama/fumadocs) from 14.2.14 to 14.3.1.
- [Release notes](https://github.com/fuma-nama/fumadocs/releases)
- [Commits](https://github.com/fuma-nama/fumadocs/compare/fumadocs-mdx@14.2.14...fumadocs-ui@14.3.1)

---
updated-dependencies:
- dependency-name: fumadocs-mdx
  dependency-version: 14.3.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

apps/site/package.json

@@ -33,7 +33,7 @@
     "ag-grid-community": "^35.2.1",
     "ag-grid-react": "^35.2.1",
     "fumadocs-core": "16.7.14",
-    "fumadocs-mdx": "14.2.14",
+    "fumadocs-mdx": "14.3.1",
     "fumadocs-ui": "16.8.1",
     "lucide-react": "^1.8.0",
     "next": "16.2.4",