tests: enabling of DataCiteTasksTest
tests: enabling of DataCiteTasksTest

* FIX Enables DataCiteTasksTest class which was marked to be enabled
  after module separation.

Signed-off-by: Sami Hiltunen <ebafb54bedf33e7dd12950a4634d6a0f6ba63e44@cern.ch>

tiborsimko/invenio-records,inveniosoftware/invenio-records,tiborsimko/invenio-records,inveniosoftware/invenio-records