added set -x to figure out why start keycloak is failing

bin/start_keycloak

@@ -6,6 +6,7 @@ function error_handler() {
 }
 trap 'error_handler ${LINENO} $?' ERR
 set -o errtrace -o errexit -o nounset -o pipefail
+set -x
 
 docker rm keycloak 2>/dev/null || echo 'no keycloak container found'
 docker run -p 7002:8080 -d  --name keycloak -e KEYCLOAK_LOGLEVEL=ALL -e ROOT_LOGLEVEL=ALL -e KEYCLOAK_ADMIN=admin -e KEYCLOAK_ADMIN_PASSWORD=admin quay.io/keycloak/keycloak:18.0.2 start-dev -Dkeycloak.profile.feature.token_exchange=enabled -Dkeycloak.profile.feature.admin_fine_grained_authz=enabled