Update the test suite to run with a wider range of PHP versions #26

	name: tests

	on:
	push:
	pull_request:

	jobs:
	tests:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	php:
	- '5.3'
	- '5.4'
	- '5.5'
	- '5.6'
	- '7.0'
	- '7.1'
	- '7.2'
	- '7.3'
	- '7.4'
	- '8.0'
	- '8.1'
	- '8.2'
	- '8.3'

	name: PHP ${{ matrix.php }}

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

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}
	extensions: curl
	tools: composer:v2
	coverage: none

	- name: Install PHP dependencies
	run: composer update --prefer-dist --no-interaction --no-progress

	- name: Execute tests
	run: vendor/bin/phpunit -c tests/phpunit.xml.dist

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