[enterprise-4.5] Add MachineSet infra and server group content#26463

openshift-cherrypick-robot wants to merge 3 commits intoopenshift:enterprise-4.5openshift/openshift-docs:enterprise-4.5from

openshift-cherrypick-robot:cherry-pick-25837-to-enterprise-4.5openshift-cherrypick-robot/openshift-docs:cherry-pick-25837-to-enterprise-4.5Copy head branch name to clipboard