Baremetal: Dependency lock may prevent scaling management-cluster control plane replicas from 2 to 3

While upgrading management cluster.control_plane_replicas from 2 to 3 replicas on controlplane, we may observe a deadlock because vault statefulset replicas will be updated to 3, but while using metal3 we have the following dependency chain between units:

cluster > metal3 > metal3-sync-secrets > eso-secret-stores > vault

Following update, vault won't be ready until the 3 nodes become ready, as we have an antiaffinity rule, but cluster will never be scaled, as its kustomization depends indirectly on vault since we merged !745 (merged)