⬆️ Bump next from 14.2.30 to 15.5.4

Bumps [next](https://github.com/vercel/next.js) from 14.2.30 to 15.5.4.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.30...v15.5.4)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

packages/website/package.json

@@ -36,7 +36,7 @@
     "jest-environment-jsdom": "^29.7.0",
     "jest-fetch-mock": "^3.0.3",
     "lint-staged": "^16.1.6",
-    "next": "^14.2.30",
+    "next": "^15.5.4",
     "next-pwa": "^5.6.0",
     "next-sitemap": "^4.2.3",
     "next-themes": "^0.4.6",