update github actions/checkout to v4 #14

	name: tests

	on:
	push:
	branches:
	- 2.x
	pull_request:
	branches:
	- master

	jobs:
	php:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	php: [7.4, 8.0, 8.1]
	dependency-version: [prefer-lowest, prefer-stable]

	steps:
	- name: checkout code
	uses: actions/checkout@v4

	- name: setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}
	coverage: xdebug

	# - name: do some magic Composer cache
	# id: composer-cache
	# run: echo "::set-output name=dir::$(composer config cache-files-dir)"
	# - uses: actions/cache@v2
	# with:
	# path: ${{ steps.composer-cache.outputs.dir }}
	# key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	# restore-keys: ${{ runner.os }}-composer-

	- name: install dependencies
	run: composer update --${{ matrix.dependency-version }}

	- name: run tests
	# run: php vendor/bin/phpunit --coverage-clover=coverage.clover
	run: php vendor/bin/phpunit

	# - name: upload code coverage
	# run: php vendor/bin/ocular code-coverage:upload --format=php-clover coverage.clover

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