[uni02beta] Decouple master and worker nodes on uni02beta DT

[gmarcian]

This change updates the uni02beta deployed topology to decouple OpenShift cluster from OpenStack control-plane workloads. This should allow executing HA disruptive tests on the Openstack control-plane nodes with no risk to break or affect the Openshift cluster.
The target layout is:
3 OCP master nodes dedicated to the OpenShift cluster
3 OCP worker nodes dedicated to the OpenStack control plane
1 additional worker node dedicated to running the Test Operator (not changed)

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: gmarcian
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[openshift-ci]

Hi @gmarcian. Thanks for your PR.

I'm waiting for a openstack-k8s-operators member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/8fcc69334a1b40cca3603cf2647665d1

✔️ noop SUCCESS in 0s
✔️ rhoso-architecture-validate-uni02beta SUCCESS in 4m 46s
❌ rhoso-architecture-validate-uni02beta-adoption FAILURE in 3m 20s

[gmarcian]

recheck

[gmarcian]

recheck