fix config file to use non-root user and have listener appear before protocol

Author: f18m

modules/mqtt/testcontainers/mqtt/testcontainers-mosquitto-default-configuration.conf

@@ -1,7 +1,6 @@
 # see https://mosquitto.org/man/mosquitto-conf-5.html
 
-protocol mqtt
-user root
+listener 1883
 log_dest stdout
 allow_anonymous true
 
@@ -14,7 +13,4 @@ log_timestamp_format %Y-%m-%d %H:%M:%S
 persistence true
 persistence_location /data/
 
-listener 1883
-protocol mqtt
-
 sys_interval 1