build: Download GutenbergKit artifacts via the Swift plugin

[dcalhoun]

Related

• https://github.com/wordpress-mobile/GutenbergKit/pull/45

Description

Update GutenbergKit integration to download artifacts via the Swift plugin.

To test: TBD

Regression Notes

1. Potential unintended areas of impact TBD
2. What I did to test those areas of impact (or what existing automated tests I relied on) TBD
3. What automated tests I added (or what prevented me from doing so) TBD

PR submission checklist:

• [ ] I have completed the Regression Notes.
• [ ] I have considered adding unit tests for my changes.
• [ ] I have considered adding accessibility improvements for my changes.
• [ ] I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

Testing checklist:

• [ ] WordPress.com sites and self-hosted Jetpack sites.
• [ ] Portrait and landscape orientations.
• [ ] Light and dark modes.
• [ ] Fonts: Larger, smaller and bold text.
• [ ] High contrast.
• [ ] VoiceOver.
• [ ] Languages with large words or with letters/accents not frequently used in English.
• [ ] Right-to-left languages. (Even if translation isn’t complete, formatting should still respect the right-to-left layout)
• [ ] iPhone and iPad.
• [ ] Multi-tasking: Split view and Slide over. (iPad)

[dangermattic]

	1 Warning
:warning:	Modules/Package.swift was changed without updating its corresponding Package.resolved. Please resolve the Swift packages as appropriate to your project setup (e.g. in Xcode or by running swift package resolve).

	1 Message
:book:	This PR is still a Draft: some checks will be skipped.

Generated by :no_entry_sign: Danger

[dcalhoun]

Closing as stale. We still need this, but should likely with a fresh perspective from the infrastructure team.