Add support for Python 3.12

.gitlab-ci.yml

.pre-commit-config.yaml

dan/datasets/download/images.py

dan/datasets/entities/__init__.py

dan/datasets/extract/exceptions.py

dan/datasets/tokens/__init__.py

dan/ocr/__init__.py

dan/ocr/manager/training.py

dan/ocr/predict/attention.py

dan/ocr/transforms.py

dan/ocr/utils.py

docs/contributing.md

docs/usage/convert/index.md

docs/usage/evaluate/index.md

docs/usage/predict/index.md

docs/usage/train/augmentation.md

docs/usage/train/config.md

docs/usage/train/jeanzay.md

pyproject.toml

.../prediction/0a56e8b3-95cd-4fa5-a17b-5b0ff9e6ea84_line.gif