Attempt to fix the package version bug by fetching the entire repo
in the package build workflow. This should get the tag so it can be
used when setting the version.
Closes#106.
Add `tox.ini` config with supported versions, and a new tox CI
workflow to run tox tests on master branch changes. This is "expensive"
so we may consider limiting execution further.
Ignore no-commit-to-branch check when running in CI workflow, since this check
is only relevant to running locally, and fails when running on master branch in
CI workflow.
Refactor the pre-commit and python test workflows into a single workflow
in order to use pre-commit check as a gate for Python tests. This will help
limit execution of Python tests.