WINC-1869: Drop support for Windows Server 2019 in CI and machineset.sh script#3995

jrvaldes wants to merge 2 commits intoopenshift:masteropenshift/windows-machine-config-operator:masterfrom

jrvaldes:drop-ws2019-supportjrvaldes/windows-machine-config-operator:drop-ws2019-supportCopy head branch name to clipboard