Bump next from 13.5.4 to 14.0.3 in /example

Bumps [next](https://github.com/vercel/next.js) from 13.5.4 to 14.0.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v13.5.4...v14.0.3)

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

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

Author: dependabot[bot]

example/package-lock.json

@@ -24,7 +24,7 @@
   "devDependencies": {
     "@babel/plugin-syntax-object-rest-spread": "^7.8.3",
     "@next/eslint-plugin-next": "^14.0.1",
-    "next": "^13.5.4",
+    "next": "^14.0.3",
     "rimraf": "^5.0.5"
   },
   "browserslist": [