update registry.version

Author: tharindu1st

pom.xml

@@ -2030,7 +2030,7 @@
 
         <carbon.commons.version>4.10.3</carbon.commons.version>
 
-        <carbon.registry.version>4.8.30</carbon.registry.version>
+        <carbon.registry.version>4.8.31</carbon.registry.version>
         <carbon.mediation.version>4.7.200</carbon.mediation.version>
 
         <mongodb.driver.version>4.1.0</mongodb.driver.version>