bindings: python: configure and document dev dependencies

bindings: python: configure and document dev dependencies

Mypy [0] is a popular static type checker that validates attribute and
variable use and ensures function arguments adhere to type annotations.

Ruff [1] is a popular Rust-based Python linter and code formatter. It
has support for a large set of linting rules [2] and largely complies
with the Black format [3].

Add documentation to README.md for how to run the tools.

[0]: https://mypy.readthedocs.io/en/stable/
[1]: https://docs.astral.sh/ruff/
[2]: https://docs.astral.sh/ruff/rules/
[3]: https://docs.astral.sh/ruff/formatter/#black-compatibility

Signed-off-by: Vincent Fazio <vfazio@xes-inc.com>
Link: https://lore.kernel.org/r/20241114145116.2123714-24-vfazio@xes-inc.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>