add proper return types #13

	# This is a basic workflow to help you get started with Actions

	name: CI

	# Controls when the action will run.
	on:
	# Triggers the workflow on push or pull request events
	push:
	pull_request:

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# Composer config validation
	composer:
	name: Composer config validation
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Validate composer.json
	run: composer validate --strict

	# PHP syntax validation
	php:
	name: PHP syntax validation
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Check PHP syntax of config/phinx.php
	run: php -l Lib/

	# phpstan for several php versions
	phpstan:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	php_version: [ 8.0, 8.1, 8.2 ]
	steps:
	- uses: actions/checkout@v3
	- uses: php-actions/composer@v6
	with:
	php_version: ${{ matrix.php_version }}
	php_extensions: redis intl

	- name: PHPStan Static Analysis
	uses: php-actions/phpstan@v3
	with:
	php_version: ${{ matrix.php_version }}
	configuration: phpstan.neon
	path: Lib/

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