Add phpunit in CI #7

	name: Psalm

	on:
	pull_request:
	paths-ignore:
	- 'docs/**'
	- 'bin/**'
	- 'resources/**'
	- 'README.md'
	- 'CHANGELOG.md'
	- '.gitignore'
	- '.gitattributes'
	- '.editorconfig'
	- 'psalm.xml'

	push:
	paths-ignore:
	- 'docs/**'
	- 'bin/**'
	- 'resources/**'
	- 'README.md'
	- 'CHANGELOG.md'
	- '.gitignore'
	- '.gitattributes'
	- '.editorconfig'
	- 'psalm.xml'

	jobs:
	psalm:
	name: Psalm Validation (PHP ${{ matrix.php }}, OS ${{ matrix.os }})
	runs-on: ${{ matrix.os }}
	continue-on-error: true
	strategy:
	fail-fast: false
	matrix:
	php: [8.2]
	os: [ubuntu-latest]
	steps:
	- name: Set up PHP ${{ matrix.php }}
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}
	extensions: dom

	- name: Check Out Code
	uses: actions/checkout@v4
	with:
	fetch-depth: 1

	- name: Get Composer Cache Directory
	id: composer-cache
	run: echo "::set-output name=dir::$(composer config cache-files-dir)"

	- name: Cache Dependencies
	uses: actions/cache@v3
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: php-${{ matrix.php }}-${{ runner.os }}-composer-

	- name: Install Composer Dependencies
	run: composer install --prefer-dist --no-interaction

	- name: Run Tests
	run: vendor/bin/psalm

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