Backport of docs: Update K8s TGW tutorial to reliably obtain role ID into release/1.16.x#18508

hc-github-team-consul-core merged 1 commit intorelease/1.16.xhashicorp/consul:release/1.16.xfrom

backport/docs/k8s-tgw-tutorial-role-id-fix/explicitly-vast-ramhashicorp/consul:backport/docs/k8s-tgw-tutorial-role-id-fix/explicitly-vast-ramCopy head branch name to clipboard