build(deps): bump next from 15.3.4 to 15.4.8 (#12)

Bumps [next](https://github.com/vercel/next.js) from 15.3.4 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@v15.3.4...v15.4.8)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -44,7 +44,7 @@
     "cmdk": "^1.1.1",
     "geist": "^1.3.0",
     "lucide-react": "^0.525.0",
-    "next": "^15.3.4",
+    "next": "^15.4.8",
     "next-themes": "^0.4.4",
     "postgres": "^3.4.4",
     "react": "^18.3.1",