Bump next from 15.5.6 to 16.0.0

Bumps [next](https://github.com/vercel/next.js) from 15.5.6 to 16.0.0.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.5.6...v16.0.0)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 16.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -41,7 +41,7 @@
     "@react-spring/web": "^10.0.3",
     "@yoonghan/walcron-microfrontend-shared": "^12.1.2",
     "firebase-admin": "^13.5.0",
-    "next": "^15.5.6",
+    "next": "^16.0.1",
     "pusher": "^5.2.0",
     "react": "^19.2.0",
     "react-dom": "^19.2.0",