Depending on latest sadis 5.3.0 API version

Change-Id: I69a6212c5ae49f733b504da881b5f1cc28c39bfe
diff --git a/app/pom.xml b/app/pom.xml
index c12d855..d5d27ab 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -39,7 +39,7 @@
         </api.description>
         <api.package>org.opencord.olttopology.rest</api.package>
         <olttopology.api.version>1.0.2</olttopology.api.version>
-        <sadis.api.version>5.0.0</sadis.api.version>
+        <sadis.api.version>5.3.0</sadis.api.version>
     </properties>
 
     <dependencies>