Add support for PHP 8.2 and 8.3 #42

	on:
	push:
	pull_request:
	schedule:
	- cron: 0 10 13 * *

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	php:
	- "7.3"
	- "7.4"
	- "8.0"
	- "8.1"
	- "8.2"
	- "8.3"
	composer:
	- ""
	- "--prefer-lowest"

	steps:
	- uses: actions/checkout@v2

	- name: Create Docker Container
	run: \|
	docker build . -t ci-image --build-arg PHP_VERSION=${{ matrix.php }}
	docker run --interactive --detach --volume ${{ github.workspace }}:/app --name ci ci-image

	- name: Install Dependencies
	run: docker exec ci composer update --no-interaction --no-ansi --prefer-dist ${{ matrix.composer }}

	- name: PHPUnit
	run: docker exec ci vendor/bin/phpunit

	- name: PHPStan
	run: \|
	docker exec ci vendor/bin/phpstan analyse --level=max src
	docker exec ci vendor/bin/phpstan analyse --level=max --configuration=phpstan-tests.neon tests

	- name: Coding Standards
	run: docker exec ci vendor/bin/phpcs --standard=phpcs.xml src tests

	- name: Check Dependencies
	run: docker exec ci vendor/bin/composer-require-checker --config-file=.require.json

	- name: Composer Validate
	run: docker exec ci composer validate --strict

Provide feedback