bump jackson dependency version

Author: shwetha-manvinkurke

pom.xml

@@ -129,7 +129,7 @@
     </profile>
   </profiles>
   <properties>
-    <jackson.version>2.12.1</jackson.version>
+    <jackson.version>2.12.5</jackson.version>
     <javadoc.plugin.version>3.3.1</javadoc.plugin.version>
     <jjwt.version>0.11.2</jjwt.version>
     <skip.tests>false</skip.tests>