Upgrade discovery version to 6.23.0

Author: HaojunRen

pom.xml

@@ -16,7 +16,7 @@
     </modules>
 
     <properties>
-        <discovery.version>6.22.0</discovery.version>
+        <discovery.version>6.23.0</discovery.version>
 
         <!-- Spring Cloud Hoxton compatible versions -->
         <spring.cloud.version>Hoxton.SR12</spring.cloud.version>