feat(appset): Add a cache layer for Argo Projects to speed-up application validation

[dacofr]

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• The title of the PR conforms to the Toolchain Guide
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
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• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
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[dacofr]

Closed in favour of official PR