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
```