chore(deps): bump next from 16.2.3 to 16.2.6 in /web-ui (#631)

Bumps [next](https://github.com/vercel/next.js) from 16.2.3 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@v16.2.3...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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Frank Bria <frank.bria@proton.me>

Author: dependabot[bot]

web-ui/package-lock.json

@@ -32,7 +32,7 @@
     "class-variance-authority": "^0.7.0",
     "clsx": "^2.1.0",
     "date-fns": "^3.3.1",
-    "next": "^16.1.6",
+    "next": "^16.2.6",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
     "react-markdown": "^10.1.0",