Bump next from 9.5.2 to 12.1.0 in /core/examples/luigi-example-next (S…

…AP#2653)

* Bump next from 9.5.2 to 12.1.0 in /core/examples/luigi-example-next

Bumps [next](https://github.com/vercel/next.js) from 9.5.2 to 12.1.0.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v9.5.2...v12.1.0)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
...

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

* Update React with Next.js

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Wiktor Doberschuetz <[email protected]>