Refactor: Unify tool configurations under `pyproject.toml`

[zwimer]

Most python tools provide support for putting their configurations in pyproject.toml. For example:

https://github.com/pytest-dev/pytest/blob/main/pyproject.toml

Just search for [tool.. Tools that support pyproject.toml include black, flake8, bandit, pytest, among others. I might be able to make a PR for this later, though I will do so after addressing #694 as it will hit merge conflicts.

[zwimer]

Will address this after #690 as that adds another file (.coveragerc) that might be relocatable to pyproject.toml.

[staticdev]

Actually, much of the tooling can be replaced by ruff which is much faster and will have all config in pyproject.toml.

[staticdev]

@zwimer closed by #709