Add a workers related workflow to the fixture

Makefile

arkindex/dataimport/serializers/workers.py

arkindex/dataimport/tests/test_gitlab_provider.py

arkindex/dataimport/tests/test_imports.py

arkindex/dataimport/tests/test_providers.py

arkindex/dataimport/tests/test_repos.py

arkindex/dataimport/tests/test_signals.py

arkindex/dataimport/tests/test_workerruns.py

arkindex/dataimport/tests/test_workers.py

arkindex/dataimport/tests/test_workflows_api.py

arkindex/documents/fixtures/data.json

arkindex/documents/management/commands/build_fixtures.py

arkindex/documents/tests/test_bulk_classification.py

arkindex/documents/tests/test_bulk_element_transcriptions.py

arkindex/documents/tests/test_bulk_elements.py

arkindex/documents/tests/test_children_elements.py

arkindex/documents/tests/test_create_elements.py

arkindex/documents/tests/test_create_transcriptions.py

arkindex/documents/tests/test_entities_api.py

arkindex/documents/tests/test_list_elements.py