Upgrade jackson version (#69)

* Upgrade jackson version

Author: adhesivee

oauth2-server-integration-base/pom.xml

@@ -13,6 +13,7 @@
 
     <properties>
         <jackson.version>2.9.9</jackson.version>
+        <jackson.databind.version>2.9.9.3</jackson.databind.version>
     </properties>
 
     <dependencies>
@@ -60,7 +61,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>${jackson.version}</version>
+            <version>${jackson.databind.version}</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.module</groupId>