Why
Since the next release for GitOps 1.6 is introducing two new Linux architectures (IBM's ppc64 and s390x respectively).

What
In order to perform seamless tests in every architecture, we must ensure that all the container images used within the upstream project are available on every platform.

Acceptance Criteria:

• You can run argocd e2e tests on all these platforms:
  • x86_64
  • ppc64
  • s390x.
• All images are available in a public registry, so we avoid dependencies like an external GCR account.