Bump the example-dependencies group in /example with 2 updates

Bumps the example-dependencies group in /example with 2 updates: [@next/eslint-plugin-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-plugin-next) and [next](https://github.com/vercel/next.js).


Updates `@next/eslint-plugin-next` from 14.1.4 to 14.2.3
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/commits/v14.2.3/packages/eslint-plugin-next)

Updates `next` from 14.1.4 to 14.2.3
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.1.4...v14.2.3)

---
updated-dependencies:
- dependency-name: "@next/eslint-plugin-next"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: example-dependencies
- dependency-name: next
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: example-dependencies
...

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

Author: dependabot[bot]