Bump action/download-artifact version to v4 #54

	# This workflow runs on every push to main. It does the following:
	# 1. Checks if black formatting is followed.
	# 2. Runs all tests.

	name: lint_and_test
	on:
	pull_request:
	push:
	branches:
	- 'main*'

	jobs:
	pre-commit:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v4
	- uses: pre-commit/[email protected]

	run_tests:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: ['3.9', '3.10', '3.11', '3.12']

	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0 # Fetched tags too
	submodules: true # Checkout submodules
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	cache: pip

	- name: Install dependencies
	run: \|
	pip install --upgrade pip
	pip install .[test]

	- name: Test with pytest
	run: \|
	pytest tests/

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