chore(deps): bump next in /apps/next-app-router/next-app-router-4000

Bumps [next](https://github.com/vercel/next.js) from 15.0.0-canary.193 to 15.4.8.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.0.0-canary.193...v15.4.8)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.4.8
  dependency-type: direct:production
...

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

Author: dependabot[bot]

apps/next-app-router/next-app-router-4000/package.json

@@ -23,7 +23,7 @@
     "date-fns": "3.6.0",
     "dinero.js": "2.0.0-alpha.10",
     "ms": "3.0.0-canary.1",
-    "next": "15.0.0-canary.193",
+    "next": "15.4.8",
     "react": "19.0.0-rc-cd22717c-20241013",
     "react-dom": "19.0.0-rc-cd22717c-20241013",
     "server-only": "0.0.1",