Implement alternative to resolve upstream flavor package's dependency on the registry1 gitlab-runner-helper image.

[zachariahmiller]

Describe what should be investigated or refactored

The upstream helper image currently does not work correctly in our locked down deployment configuration. This means that we have had to use the registry1 helper in the upstream deployment which limits it from truly being multi-arch.

Links to any relevant code

uds-package-gitlab-runner/zarf.yaml

Line 73 in 9025c6b

- "registry1.dso.mil/ironbank/gitlab/gitlab-runner/gitlab-runner-helper:v16.8.0"

Additional context

Add any other context or screenshots about the technical debt here.