Python 3.8, 3.10, and 3.12 support

[mahnunchik]

I'm working on adding support for python 3.8, 3.10, and 3.12.

Motivation: Home Assistant addon uses python 3.11, so I decided to make mqtt-io working with latest 3.12 too.

I successfully upgraded to 3.10. But to work on 3.12, I had to update pylint and mypy packages. I fixed most of the lint errors but I need a help to figure it out last two errors:

poetry run mypy --show-error-codes --strict --no-warn-unused-ignores mqtt_io
mqtt_io/modules/gpio/gpiozero.py:99: error: Argument 1 has incompatible type "bool"; expected "list[Any]"  [arg-type]
mqtt_io/modules/gpio/gpiozero.py:101: error: Argument 1 has incompatible type "bool"; expected "list[Any]"  [arg-type]
Found 2 errors in 1 file (checked 61 source files)

Sources:

mqtt-io/mqtt_io/modules/gpio/gpiozero.py

Lines 99 to 101 in ad8514c

	self._in_pins[pin].when_activated = partial(callback, True)
	if edge in (InterruptEdge.BOTH, InterruptEdge.FALLING):
	self._in_pins[pin].when_deactivated = partial(callback, False)

CI: https://github.com/mahnunchik/mqtt-io/actions/runs/11000870597

[mahnunchik]

@flyte @mschlenstedt @BenjiU could you please help me to solve last two issues with mypy linting.

[mahnunchik]

@flyte @mschlenstedt @BenjiU I was able to resolve the last type validation error: to support any list of arguments Callable should have signature [Callable[..., None]] instead of Callable[[List[Any], Dict[Any, Any]].

• https://docs.python.org/3/library/typing.html#annotating-callable-objects
• https://github.com/python/mypy/blob/master/CHANGELOG.md#support-for-functoolspartial

Summary of this PR:

• mypy updated to support python 3.11+
• pylint updated to support python 3.9+
• backoff updated to support typing out of the box
• Updated github action
• Many typing fixes

I'd like to request to review my PR.

[BenjiU]

Thanks for this great contribution