Convert multiline enabled_plugins to single value

(cherry picked from commit ceb7b24)

Author: MarcialRosales

selenium/bin/components/rabbitmq

@@ -70,7 +70,7 @@ start_local_rabbitmq() {
 
   print "> EFFECTIVE RABBITMQ_CONFIG_FILE: /tmp$MOUNT_RABBITMQ_CONF"
   cp ${RABBITMQ_CONFIG_DIR}/enabled_plugins /tmp/etc/rabbitmq/
-  RABBITMQ_ENABLED_PLUGINS=`cat /tmp/etc/rabbitmq/enabled_plugins | awk -F'[][]' '{print $2}'`
+  RABBITMQ_ENABLED_PLUGINS=`cat /tmp/etc/rabbitmq/enabled_plugins | awk '{printf("\"%s\" ",$0)} END { printf "\n" }' | awk -F'[][]' '{print $2}'`
   print "> EFFECTIVE PLUGINS: $RABBITMQ_ENABLED_PLUGINS"
 
   ${BIN_DIR}/gen-advanced-config ${RABBITMQ_CONFIG_DIR} $ENV_FILE /tmp$MOUNT_ADVANCED_CONFIG

selenium/test/basic-auth/enabled_plugins

@@ -1,15 +1 @@
-[accept,amqp10_client,amqp_client,base64url,cowboy,cowlib,eetcd,gun,jose,
- oauth2_client,prometheus,rabbitmq_amqp1_0,rabbitmq_auth_backend_cache,
- rabbitmq_auth_backend_http,rabbitmq_auth_backend_ldap,
- rabbitmq_auth_backend_oauth2,rabbitmq_auth_mechanism_ssl,rabbitmq_aws,
- rabbitmq_consistent_hash_exchange,rabbitmq_event_exchange,
- rabbitmq_federation,rabbitmq_federation_management,
- rabbitmq_jms_topic_exchange,rabbitmq_management,rabbitmq_management_agent,
- rabbitmq_mqtt,rabbitmq_peer_discovery_aws,rabbitmq_peer_discovery_common,
- rabbitmq_peer_discovery_consul,rabbitmq_peer_discovery_etcd,
- rabbitmq_peer_discovery_k8s,rabbitmq_prometheus,rabbitmq_random_exchange,
- rabbitmq_recent_history_exchange,rabbitmq_sharding,rabbitmq_shovel,
- rabbitmq_shovel_management,rabbitmq_stomp,rabbitmq_stream,
- rabbitmq_stream_common,rabbitmq_stream_management,rabbitmq_top,
- rabbitmq_tracing,rabbitmq_trust_store,rabbitmq_web_dispatch,
- rabbitmq_web_mqtt,rabbitmq_web_stomp].
+[rabbitmq_management].