chore(deps): bump fumadocs-mdx from 15.0.13 to 15.2.0 (#2751)

Bumps [fumadocs-mdx](https://github.com/fuma-nama/fumadocs) from 15.0.13 to 15.2.0.
- [Release notes](https://github.com/fuma-nama/fumadocs/releases)
- [Commits](https://github.com/fuma-nama/fumadocs/compare/fumadocs-mdx@15.0.13...fumadocs-mdx@15.2.0)

---
updated-dependencies:
- dependency-name: fumadocs-mdx
  dependency-version: 15.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

apps/site/package.json

@@ -33,7 +33,7 @@
     "@object-ui/types": "workspace:*",
     "@objectstack/spec": "^16.0.0-rc.0",
     "fumadocs-core": "16.11.5",
-    "fumadocs-mdx": "15.0.13",
+    "fumadocs-mdx": "15.2.0",
     "fumadocs-ui": "16.11.5",
     "lucide-react": "^1.25.0",
     "next": "16.2.10",