build(deps): Bump next from 15.1.2 to 15.1.3 in /app-frontend

Bumps [next](https://github.com/vercel/next.js) from 15.1.2 to 15.1.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.1.2...v15.1.3)

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

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

app-frontend/package.json

@@ -9,7 +9,7 @@
     "test": "jest --watch"
   },
   "dependencies": {
-    "next": "^15.1.2",
+    "next": "^15.1.3",
     "react": "^19.0.0",
     "react-dom": "^19.0.0"
   },