Replace Guzzle with generic PSR18 discovery #64

	name: Tests and linting

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	php-versions: ['7.4', '8.0', '8.1', '8.2']

	name: PHP ${{ matrix.php-versions }}

	steps:
	- uses: actions/checkout@v2

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

	- name: Check PHP version
	run: php -v

	- name: Validate composer.json and composer.lock
	run: composer validate --strict

	- 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-

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

	- name: Run linting
	run: composer run-script lint

	- name: Run tests
	run: composer run-script test

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