[skip netlify] Bump next from 15.5.4 to 16.1.1

Bumps [next](https://github.com/vercel/next.js) from 15.5.4 to 16.1.1.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.5.4...v16.1.1)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 16.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -30,7 +30,7 @@
     "markdown-it": "^14.1.0",
     "markdown-it-anchor": "^9.2.0",
     "markdown-it-prism": "^3.0.0",
-    "next": "^15.5.9",
+    "next": "^16.1.1",
     "normalize.css": "^8.0.1",
     "plaiceholder": "^2.5.0",
     "query-string": "^9.2.1",