Merge branch 'unignore-flake8' into 'master'

arkindex/dataimport/tests/test_workflows_api.py

arkindex/documents/api/iiif.py

arkindex/documents/date_parser.py

arkindex/documents/indexer.py

arkindex/documents/management/commands/delete_corpus.py

arkindex/documents/managers.py

arkindex/documents/pagexml.py

arkindex/documents/serializers/entities.py

arkindex/documents/tests/test_elements_api.py

arkindex/documents/tests/test_entities_api.py

arkindex/documents/tests/test_indexer.py

arkindex/documents/tests/test_regions.py

arkindex/documents/tests/test_tei.py

arkindex/images/management/commands/reorder_polygons.py

arkindex/project/tests/test_openapi.py

setup.cfg