chore(deps): bump fumadocs-core from 16.5.1 to 16.6.5

Bumps [fumadocs-core](https://github.com/fuma-nama/fumadocs) from 16.5.1 to 16.6.5.
- [Release notes](https://github.com/fuma-nama/fumadocs/releases)
- [Commits](https://github.com/fuma-nama/fumadocs/commits/fumadocs-core@16.6.5)

---
updated-dependencies:
- dependency-name: fumadocs-core
  dependency-version: 16.6.5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

packages/site/package.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "client-only": "^0.0.1",
     "dotenv": "^16.4.5",
-    "fumadocs-core": "16.5.1",
+    "fumadocs-core": "16.6.5",
     "fumadocs-mdx": "14.2.6",
     "fumadocs-ui": "16.5.1",
     "lucide-react": "^0.563.0",