Make the E2E workflow self-sufficient by applying the polaris-rbac.yaml
manifest before the pre-flight check, instead of requiring manual
cluster pre-configuration.
Before: workflow checked for RBAC and failed fast, but had no mechanism
to apply it — it was purely a detection step.
After: workflow applies the RBAC manifest (idempotent kubectl apply),
then verifies the resources exist as a correctness check.
Also collapses MISSING_ROLE and MISSING_ROLEBINDING into a single
boolean flag and drops the non-standard --quiet flag on kubectl get.
Fixes: PRI-324
Co-Authored-By: Paperclip <noreply@paperclip.ing>
Chris Farhood
53475296db