fix(deps): bump next from 16.2.4 to 16.2.6

Bumps [next](https://github.com/vercel/next.js) from 16.2.4 to 16.2.6.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v16.2.4...v16.2.6)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 16.2.6
  dependency-type: direct:production
...

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

Author: dependabot[bot]

apps/docs/package.json

@@ -11,7 +11,7 @@
     "fumadocs-core": "^16.8.1",
     "fumadocs-mdx": "^14.3.1",
     "fumadocs-ui": "^16.8.1",
-    "next": "^16.2.4",
+    "next": "^16.2.6",
     "react": "^19.2.5",
     "react-dom": "^19.2.5"
   },