fix(resource manager): print valid JSON/YAML output for list cmds#1394

rubenhoenle merged 1 commit intomainstackitcloud/stackit-cli:mainfrom

fix/STACKITCLI-270-resource-manager-json-list-outputstackitcloud/stackit-cli:fix/STACKITCLI-270-resource-manager-json-list-outputCopy head branch name to clipboard