Fix RequireUpperBoundDeps issue
```
WARNING] Rule 3: org.apache.maven.plugins.enforcer.RequireUpperBoundDeps fai
Failed while enforcing RequireUpperBoundDeps. The error(s) are [
Require upper bound dependencies error for org.objenesis:objenesis:2.1 paths
+-org.jenkins-ci.main:test:2.92-SNAPSHOT
+-org.mockito:mockito-core:1.10.19
+-org.objenesis:objenesis:2.1
and
+-org.jenkins-ci.main:test:2.92-SNAPSHOT
+-org.awaitility:awaitility:3.0.0
+-org.objenesis:objenesis:2.5.1
```
@@ -204,6 +204,12 @@ THE SOFTWARE.
<version>3.0.0</version>
<scope>test</scope>
</dependency>
+ <dependency>
+ <groupId>org.objenesis</groupId>
+ <artifactId>objenesis</artifactId>
+ <version>2.5.1</version>
+ <scope>test</scope>
+ </dependency>
</dependencies>
<build>
