Update actions/cache action to v4 #62

	# https://help.github.com/en/categories/automating-your-workflow-with-github-actions

	on:
	- pull_request
	- push

	name: "Continuous Integration"

	jobs:
	run:
	name: "Grumphp"
	runs-on: ${{ matrix.operating-system }}
	strategy:
	fail-fast: false
	matrix:
	operating-system: [ubuntu-latest, windows-latest, macOS-latest]
	php-versions: ['7.1', '7.2', '7.3', '7.4']

	steps:
	- name: Checkout
	uses: actions/checkout@master
	with:
	fetch-depth: 1

	- name: Install PHP
	uses: shivammathur/setup-php@master
	with:
	php-version: ${{ matrix.php-versions }}
	extensions: xdebug,mbstring

	- name: Get Composer Cache Directory
	id: composer-cache
	run: echo "::set-output name=dir::$(composer config cache-files-dir)"

	- name: Cache dependencies
	uses: actions/cache@v4
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
	restore-keys: ${{ runner.os }}-composer-

	- name: Install Graphviz
	uses: kamiazya/setup-graphviz@v1

	- name: Install dependencies
	run: composer install --no-progress --no-suggest --prefer-dist --optimize-autoloader

	- name: Run Grumphp
	run: vendor/bin/grumphp run
	env:
	STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}

	- name: Send PSALM data
	run: vendor/bin/psalm --shepherd --stats
	continue-on-error: true

	- name: Scrutinizer
	run: \|
	wget https://scrutinizer-ci.com/ocular.phar
	php ocular.phar code-coverage:upload --format=php-clover build/logs/clover.xml
	continue-on-error: true

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