[AutoPR containerservice] add mc snapshot api#5791

openapi-sdkautomation[bot] wants to merge 1 commit intomainAzureSDKAutomation/azure-resource-manager-schemas:mainfrom

sdkAuto/17974/containerserviceAzureSDKAutomation/azure-resource-manager-schemas:sdkAuto/17974/containerserviceCopy head branch name to clipboard