Set offline DS action inactive on creation (#728)

* fix: set offline DS action inactive on creation
* test: assert that all offline actions are inactive

Signed-off-by: Subhadip Pramanik <pramaniksubhadip@gmail.com>

hawkbit-repository/hawkbit-repository-jpa/src/main/java/org/eclipse/hawkbit/repository/jpa/OfflineDsAssignmentStrategy.java

@@ -89,6 +89,7 @@ public class OfflineDsAssignmentStrategy extends AbstractDsAssignmentStrategy {
             final JpaTarget target, final JpaDistributionSet set) {
         final JpaAction result = super.createTargetAction(targetsWithActionMap, target, set);
         result.setStatus(Status.FINISHED);
+        result.setActive(Boolean.FALSE);
         return result;
     }