chore(deps): update actions/checkout action to v4 #190

	on:
	pull_request:
	branches:
	- main
	name: unittest
	jobs:
	unit:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python: ['3.7', '3.8', '3.9', '3.10', '3.11']
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python }}
	- name: Install nox
	run: \|
	python -m pip install --upgrade setuptools pip wheel
	python -m pip install nox
	- name: Run unit tests
	env:
	COVERAGE_FILE: .coverage-${{ matrix.python }}
	run: \|
	nox -s unit-${{ matrix.python }}
	- name: Upload coverage results
	uses: actions/upload-artifact@v3
	with:
	name: coverage-artifacts
	path: .coverage-${{ matrix.python }}

	cover:
	runs-on: ubuntu-latest
	needs:
	- unit
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.8"
	- name: Install coverage
	run: \|
	python -m pip install --upgrade setuptools pip wheel
	python -m pip install coverage
	- name: Download coverage results
	uses: actions/download-artifact@v3
	with:
	name: coverage-artifacts
	path: .coverage-results/
	- name: Report coverage results
	run: \|
	coverage combine .coverage-results/.coverage*
	coverage report --show-missing --fail-under=100

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