installation: dojson dependency bump
installation: dojson dependency bump

* Bumps the `dojson` dependency to the newly released 1.3.0 version.

Signed-off-by: Tibor Simko <c7116e45300b163846dc01f3ed02116e3f8ef7a5@cern.ch>

inveniosoftware/invenio-marc21,inveniosoftware/invenio-marc21,inveniosoftware/invenio-marc21