Azure CLI and Azure Red Hat OpenShift (ARO)

> ### `az feedback` auto-generates most of the information requested below, as of CLI version 2.0.62

**Describe the bug**
I've deployed an ARO cluster in customer's subscription and it is running correctly with 3 masters, 3 infrastructure and 4 compute nodes. ARO was deployed to the East US region. Using bash I'm trying to scale the compute nodes from 4 to 5. I ran the following command: "az openshift scale --resource-group --name --compute-count 5". After a few minutes I get the error blow:


**To Reproduce**
Delpoy ARO (minimum configuration 3 masters, 3 infrastructure, 4 compute nodes) using ARM template our CLI command. Use CLI command "az openshift scale --resource-group --name --compute-count 5" to increase standard cluster by one node.

**Expected behavior**
Increase the ARO cluster by one compute node (4 to 5 nodes)

**Environment summary**

Azure CLI version used to deploy ARO is 2.0.75. ARO installation command: "

**Additional context**
Deployed ARO to different regions (East US and West US) and behavior was the same regarding Azure CLI to increase one node in the cluster.