rabbitmq_cli: Prepare tests to run against a node with Khepri enabled by default (backport #12870)#12882

dumbbell merged 1 commit intov4.0.xrabbitmq/rabbitmq-server:v4.0.xfrom

mergify/bp/v4.0.x/pr-12870rabbitmq/rabbitmq-server:mergify/bp/v4.0.x/pr-12870Copy head branch name to clipboard