Bump actions/download-artifact from 3 to 4 #81

	name: Tests

	# Controls when the action will run. Triggers the workflow on push or pull request
	# events but only for the main branch
	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]

	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v4

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install tox
	run: pip install tox

	- name: Run tests
	run: tox

	build-old:
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	python-version: ["3.6"]
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v4

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	# tox doesn't support these versions of Python anymore
	- name: Install tox
	run: pip install 'tox < 4'

	- name: Run tests
	run: tox --skip-missing-interpreters=true

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