[2.x] Load the deprecated master role in a dedocated method instead of in setAdditionalRoles()#4653

tlfeng merged 3 commits intoopensearch-project:2.xopensearch-project/OpenSearch:2.xfrom

tlfeng:2.x-master-not-additionalroletlfeng/OpenSearch:2.x-master-not-additionalroleCopy head branch name to clipboard