Add Docker compose ps to check containers

Author: acogoluegnes

ci/start-cluster.sh

@@ -21,4 +21,6 @@ docker exec rabbitmq0 rabbitmqctl enable_feature_flag --experimental khepri_db
 docker exec rabbitmq1 rabbitmqctl enable_feature_flag --experimental khepri_db
 docker exec rabbitmq2 rabbitmqctl enable_feature_flag --experimental khepri_db
 
-docker exec rabbitmq0 rabbitmqctl cluster_status
+docker exec rabbitmq0 rabbitmqctl cluster_status
+
+docker compose --file ci/cluster/docker-compose.yml ps