ci: enforce code style with Black

[uniqueg]

Use Black to auto-format code and include check in CI workflow.

[JaeAeich]

Just a suggestion but I see there are 3 issues for the same, using pylint, black and flake8-docstring would just increase the number of deps. If we are just here to enfoce certain coding style rules why not do it with one dep (ruff), checkout the config in TESK (main branch).

[uniqueg]

Yup, was thinking the same 👍 But they are still three separate issues. Doesn't mean that we can't close them all with the same PR ;-)