Update to PHP 8 #36

	name: "Linter"

	on: [push]

	jobs:

	php-cs-fixer:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Setup PHP, with composer and extensions
	uses: shivammathur/setup-php@v2
	with:
	php-version: 8.0
	tools: cs2pr

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

	- name: Cache composer dependencies
	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 install --no-progress --prefer-dist --optimize-autoloader

	- name: Code style with PHP-CS-Fixer
	run: ./vendor/squizlabs/php_codesniffer/bin/phpcs -q --report=xml \| cs2pr

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