define a version variable for jackson annotations to match jackson's dependency

Author: tomliu4uber

pom.xml

@@ -83,6 +83,7 @@
         <awsjavasdk.version>${project.version}</awsjavasdk.version>
         <flow.version>1.7</flow.version>
         <jackson.version>2.9.7</jackson.version>
+        <jackson.annotations.version>2.9.0</jackson.annotations.version>
         <ion.java.version>1.2.0</ion.java.version>
         <commons.lang.version>3.4</commons.lang.version>
         <wiremock.version>2.18.0</wiremock.version>
@@ -196,7 +197,7 @@
             <dependency>
                 <groupId>com.fasterxml.jackson.core</groupId>
                 <artifactId>jackson-annotations</artifactId>
-                <version>${jackson.version}</version>
+                <version>${jackson.annotations.version}</version>
             </dependency>
             <dependency>
                 <groupId>com.fasterxml.jackson.dataformat</groupId>