build(deps): Bump next from 15.4.7 to 15.5.4

Bumps [next](https://github.com/vercel/next.js) from 15.4.7 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@v15.4.7...v15.5.4)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -20,7 +20,7 @@
     "clsx": "^2.1.1",
     "contentstack": "^3.26.0",
     "negotiator": "^1.0.0",
-    "next": "15.4.7",
+    "next": "15.5.4",
     "react": "19.1.0",
     "react-dom": "19.1.0",
     "tailwind-merge": "^3.3.1"