chore: Modernize setuptools packaging with `pyproject.toml` #219

	name: CI

	on:
	push:
	branches: "*"
	pull_request:
	branches: "*"

	jobs:
	build-n-test-n-coverage:
	name: Build, test and code coverage
	runs-on: ubuntu-20.04
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -e .[test]
	pip install tox-gh-actions
	- name: Run the tests
	run: tox
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v4
	with:
	file: ./coverage.xml
	flags: unittests
	name: codecov-umbrella
	fail_ci_if_error: false

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