bump(cfn-lint): update to v1.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cfn-lint (changelog)	1.3.7 -> 1.4.0

---

[!WARNING] Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Release Notes

aws-cloudformation/cfn-lint (cfn-lint)

### [`v1.4.0`](https://togithub.com/aws-cloudformation/cfn-lint/blob/HEAD/CHANGELOG.md#v140) [Compare Source](https://togithub.com/aws-cloudformation/cfn-lint/compare/v1.3.7...v1.4.0) ##### v1.4.0

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 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.