Port test runner to pytest #120

	name: Run tox

	on:
	push:
	branches:
	- main
	- master
	pull_request:
	branches:
	- main
	- master

	jobs:
	build:
	name: "Project tests via tox"
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	python: [3.8, "3.10"]

	steps:
	- uses: actions/checkout@v2
	- name: Setup Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install "tox<4" tox-gh-actions
	- name: Run tox
	run: tox

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