Bump Python requirement teklia-toolbox to 0.1.7b1

arkindex_worker/worker/__init__.py

arkindex_worker/worker/base.py

arkindex_worker/worker/classification.py

arkindex_worker/worker/task.py

arkindex_worker/worker/training.py

pyproject.toml

tests/test_dataset_worker.py

tests/test_elements_worker/test_classifications.py

tests/test_elements_worker/test_corpus.py

tests/test_elements_worker/test_dataset.py

tests/test_elements_worker/test_elements.py

tests/test_elements_worker/test_entities.py

tests/test_elements_worker/test_image.py

tests/test_elements_worker/test_metadata.py

tests/test_elements_worker/test_task.py

tests/test_elements_worker/test_transcriptions.py

tests/test_elements_worker/test_worker.py