Description of problem:

The mechanism for choosing the unoccupied hostname doesn't work for EKS when two jobs run at the same time. This leads to unexpected outcomes where the tests might run against a completely different instance on a different cluster than they are supposed to.

https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/logs/periodic-ci-redhat-developer-rhdh-main-e2e-tests-eks-operator-nightly/1950813786323554304/artifacts/e2e-tests-eks-operator-nightly/redhat-developer-rhdh-eks-operator-nightly/artifacts/showcase-k8s-ci-nightly/index.html#?testId=3ce49236def8cbabceca-a2691ea2164650c1e6e1 

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

 # <steps>

Actual results:

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Always when two jobs run at the same time.

Build Details:

Additional info (Such as Logs, Screenshots, etc):