chore(deps)(deps): bump fumadocs-mdx from 14.3.2 to 15.0.5

Bumps [fumadocs-mdx](https://github.com/fuma-nama/fumadocs) from 14.3.2 to 15.0.5.
- [Release notes](https://github.com/fuma-nama/fumadocs/releases)
- [Commits](https://github.com/fuma-nama/fumadocs/compare/fumadocs-mdx@14.3.2...fumadocs-mdx@15.0.5)

---
updated-dependencies:
- dependency-name: fumadocs-mdx
  dependency-version: 15.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

apps/docs/package.json

@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "fumadocs-core": "16.8.7",
-    "fumadocs-mdx": "14.3.2",
+    "fumadocs-mdx": "15.0.5",
     "fumadocs-ui": "16.8.7",
     "lucide-react": "^1.16.0",
     "next": "16.2.4",