Add the get() methods for the GetWithoutIdMixin based classes.

Update the tests/meta/test_ensure_type_hints.py tests to check to
ensure that the get methods are defined with the correct return type.

chore: github workflow: cancel prior running jobs on new push

If new new push is done to a pull-request, then cancel any already
running github workflow jobs in order to conserve resources.

chore: add running unit tests on windows/macos

chore: fix pylint error "expression-not-assigned"

Fix pylint error "expression-not-assigned" and remove check from the
disabled list.

And I personally think it is much more readable now and is less lines
of code.

Add running the unit tests on windows-latest and macos-latest with
Python 3.10.

chore: add initial pylint check

https://github.com/pre-commit/mirrors-mypy/blob/master/.pre-commit-hooks.yaml

Sets some default args which seem to be interfering with things. Plus
we set all of our args in the `pyproject.toml` file.

If .pre-commit-config.yaml or .github/workflows/pre_commit.yml are
updated then run pre-commit.