Removed Monolog dependency and added support for PHP 8.x. #73

	on: pull_request
	name: CI
	jobs:
	linter:
	name: PHP CodeSniffer / CS Fixer
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Setup PHP with tools
	uses: shivammathur/setup-php@v2
	with:
	php-version: '7.4'
	tools: php-cs-fixer

	- name: PHP CS Fixer
	run: php-cs-fixer fix --config=.php-cs-fixer.php --using-cache=no --verbose --dry-run

	build:
	name: Build and UnitTest
	runs-on: ubuntu-latest
	strategy:
	matrix:
	php-versions: [ '7.3', '7.4', '8.0', '8.1' ]

	steps:
	# Checks out a copy of your repository on the ubuntu-latest machine
	- name: Checkout code
	uses: actions/checkout@v2

	# Sets PHP version from matrix
	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-versions: ${{ matrix.php-versions }}
	tools: phpunit

	# Validate composer files
	- name: Validate composer.json and composer.lock
	run: composer validate

	# Cache packages
	- name: Cache Composer packages
	id: composer-cache
	uses: actions/cache@v2
	with:
	path: vendor
	key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
	restore-keys: \|
	${{ runner.os }}-php-

	# Install dependencies
	- name: Install dependencies
	if: steps.composer-cache.outputs.cache-hit != 'true'
	run: composer install --prefer-dist --no-progress

	# Add a test script to composer.json, for instance: "test": "vendor/bin/phpunit"
	# Docs: https://getcomposer.org/doc/articles/scripts.md
	- name: Run test with PHP ${{ matrix.php-versions }}
	run: composer run-script test

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