reduce dependencies for engine-job-api to other engine artifacts

Current Situation
The artifact of enginge-job-api has reduced dependencies up to version 1.9.9, whereas the 1.10.3 artifact still has a dependency to the engine-common artifact.
The engine-common dependency in the 1.9 branch is in scope test in the project configuration whereas in the 1.10 branch it is still in the default scope (compile).

Desired Behavior
All upcoming versions of the engine-job-api artifacts should not have a dependency to the engine-common artifact or the dependency´s scope has to be like in the 1.9 branch..

Workaround
Add the following exclusion to the engine-job-api dependency of your project:

<exclusions>
  <exclusion>
    <groupId>com.sos-berlin.jobscheduler.engine</groupId>
    <artifactId>engine-common</artifactId>
  </exclusion>
<exclusions>