Fix the issue of load balancer demo packaging failure

Signed-off-by: hanbingleixue <[email protected]>

pom.xml

@@ -19,6 +19,7 @@
         <module>removal-demo</module>
         <module>monitor-demo</module>
         <module>mq-consume-prohibition-demo</module>
+        <module>loadbalancer-demo</module>
     </modules>
 
     <properties>