test isort template

.gitlab-ci.yml

templates/python/code_quality/black/black.yml

templates/python/code_quality/flake8/flake8.yml

templates/python/code_quality/isort/isort.yml

tests/black_project/pyproject.toml

tests/flake8_project/pyproject.toml

tests/isort_project/pyproject.toml

tests/isort_project/src/isort_project/__init__.py

tests/isort_project/src/isort_project/a_module.py

tests/isort_project/src/isort_project/main.py

tests/isort_project/src/isort_project/z_module.py