update jackson library version

Author: diana-derose

oauth2-platform-api/pom.xml

@@ -48,7 +48,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.9.6</version>
+            <version>2.9.8</version>
         </dependency>
         <dependency>
 		    <groupId>commons-codec</groupId>