Address PHP 8.4 deprecation #10

	name: Test docopt.php

	on: [push, pull_request]

	permissions:
	contents: read

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	php-version: ["7.2", "7.3", "7.4", "8.0", "8.1", "8.2"]

	steps:
	- name: Setup PHP ${{ matrix.php-version }}
	uses: shivammathur/setup-php@15c43e89cdef867065b0213be354c2841860869e
	with:
	php-version: ${{ matrix.php-version }}

	- uses: actions/checkout@v3
	with:
	submodules: true

	- name: Validate composer.json and composer.lock
	run: composer validate --strict

	- name: Cache Composer packages
	id: composer-cache
	uses: actions/cache@v3
	with:
	path: vendor
	key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
	restore-keys: \|
	${{ runner.os }}-php-

	- name: Install dependencies
	run: composer install --prefer-dist --no-progress

	- name: Run test suite
	run: php test.php

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