chore(deps): bump fumadocs-ui from 16.4.7 to 16.4.9

Bumps [fumadocs-ui](https://github.com/fuma-nama/fumadocs) from 16.4.7 to 16.4.9.
- [Release notes](https://github.com/fuma-nama/fumadocs/releases)
- [Commits](https://github.com/fuma-nama/fumadocs/commits/fumadocs-ui@16.4.9)

---
updated-dependencies:
- dependency-name: fumadocs-ui
  dependency-version: 16.4.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

packages/site/package.json

@@ -29,7 +29,7 @@
     "lucide-react": "^0.562.0",
     "fumadocs-core": "^16.4.7",
     "fumadocs-mdx": "^14.2.5",
-    "fumadocs-ui": "^16.4.7",
+    "fumadocs-ui": "^16.4.9",
     "next": "^16.1.2",
     "openai": "^4.0.0",
     "postcss": "^8.5.6",