Update for php 8.3 #142

	name: PHPUnit 7, 8
	on: [push, pull_request]
	jobs:
	build:

	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	php-versions: [7.4, 8.0, 8.2, 8.3]
	name: PHP ${{ matrix.php-versions }}

	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Install PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-versions }}
	extensions: intl #optional
	ini-values: "post_max_size=256M" #optional

	- name: Check PHP Version
	run: php -v

	- name: Update composer.lock
	run: composer update

	- 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 test suite
	run: composer run-script phpunit

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