Update architect orb to v5

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
architect (source)	orb	major	4.38.0 -> 5.1.0

---

Release Notes

giantswarm/architect-orb (architect)

### [`v5.1.0`](https://togithub.com/giantswarm/architect-orb/blob/HEAD/CHANGELOG.md#510---2024-02-23) [Compare Source](https://togithub.com/giantswarm/architect-orb/compare/v5.0.1...v5.1.0) ##### Changed - Update machine executor image to `default`. ### [`v5.0.1`](https://togithub.com/giantswarm/architect-orb/blob/HEAD/CHANGELOG.md#501---2024-02-05) [Compare Source](https://togithub.com/giantswarm/architect-orb/compare/v5.0.0...v5.0.1) ### [`v5.0.0`](https://togithub.com/giantswarm/architect-orb/blob/HEAD/CHANGELOG.md#500---2024-01-16) [Compare Source](https://togithub.com/giantswarm/architect-orb/compare/v4.38.0...v5.0.0) ##### Removed - Removed `push-to-docker` job. Please migrate to [`push-to-registries`](https://togithub.com/giantswarm/architect-orb/blob/main/docs/job/push-to-registries.md).

---

Configuration

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

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ 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.