Bump to 5.9.1 #556

	name: CI

	on: ['push', 'pull_request']

	jobs:
	ci:
	runs-on: ${{ matrix.os }}

	strategy:
	matrix:
	os: [ubuntu-18.04]
	php: ['7.3', '7.4', '8.0', '8.1']
	dependency-version: [prefer-stable]

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

	steps:

	- name: Checkout
	uses: actions/checkout@v2

	- name: Cache dependencies
	uses: actions/cache@v1
	with:
	path: ~/.composer/cache/files
	key: dependencies-php-${{ matrix.php }}-composer-${{ hashFiles('composer.json') }}

	- name: Set up PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}
	extensions: dom, fileinfo, mbstring, openssl, zip, zlib, xml
	coverage: pcov

	- name: Install Composer dependencies
	run: composer update --prefer-stable --no-interaction --prefer-dist --no-suggest

	# Github workflows/actions have no tty, the script command captures the output as a work around
	- name: PHPUnit Testing
	run: php vendor/bin/phpunit -c ./phpunit.xml.dist

	- name: Build
	run: php so app:build --build-version=0.0

	- name: Build Check
	run: php builds/so --version

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