ControlPlaneMachineSet fail to create new node while unmarshaling JSON in RHOCP 4

Issue

• ControlPlaneMachineSet fails to create a machine while attempting to replace the Master node.
• The new master machine not coming up due to the error failed to strictly unmarshal provider config due to unknown field" "error"="error unmarshaling JSON: while decoding JSON: json: unknown field \"sshPrivateKey\".