Update architect orb to v5.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
architect (source)	orb	patch	5.2.0 -> 5.2.1

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Release Notes

giantswarm/architect-orb (architect)

### [`v5.2.1`](https://togithub.com/giantswarm/architect-orb/blob/HEAD/CHANGELOG.md#521---2024-06-06) [Compare Source](https://togithub.com/giantswarm/architect-orb/compare/v5.2.0...v5.2.1) ##### Changed - Update `app-test-suite` to v0.6.1.

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