Update dependency eslint-config-next to v14.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint-config-next (source)	14.1.4 -> 14.2.1

---

Release Notes

vercel/next.js (eslint-config-next)

### [`v14.2.1`](https://togithub.com/vercel/next.js/compare/v14.2.0...v14.2.1) [Compare Source](https://togithub.com/vercel/next.js/compare/v14.2.0...v14.2.1) ### [`v14.2.0`](https://togithub.com/vercel/next.js/compare/v14.1.4...774563f2b994ae9686b8ec68b506a6ef3d7c9756) [Compare Source](https://togithub.com/vercel/next.js/compare/v14.1.4...v14.2.0)

---

Configuration

📅 Schedule: Branch creation - "every weekend" (UTC), Automerge - "after 8pm and before 8am every weekday,every weekend" (UTC).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.