ci: bump actions/checkout from 2 to 4 #712

	name: CodeCov

	on: [push, pull_request]

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	coverage:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	python-version: [ 3.8, 3.9, "3.10", "3.11"] # latest release minus two
	requirements-file: [
	dj32_cms38.txt,
	dj32_cms39.txt,
	dj32_cms41.txt,
	dj40_cms311.txt,
	dj41_cms311.txt,
	dj42_cms311.txt,
	dj40_cms41.txt,
	dj41_cms41.txt,
	dj42_cms41.txt,
	]
	os: [
	ubuntu-20.04,
	]

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: '2'

	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Generate Report
	run: \|
	pip install -r tests/requirements/${{ matrix.requirements-file }}
	coverage run setup.py test
	- name: Upload Coverage to Codecov
	uses: codecov/codecov-action@v3

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