php.yml: Update to actions/cache@v4 #115

	name: PHP Composer

	on:
	push:
	pull_request:

	jobs:
	build:

	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	php:
	- '8.0'
	- '8.1'
	- '8.2'
	- '8.3'

	steps:
	- uses: actions/checkout@v2

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}

	- name: Composer validate
	run: composer validate

	- name: Cache Composer cache
	uses: actions/cache@v4
	with:
	path: ~/.composer/cache
	key: composer-cache-php${{ matrix.php }}

	- name: Composer install
	run: composer install --no-progress --no-suggest --no-interaction --prefer-dist --optimize-autoloader
	- name: Run test suite
	run: composer ci

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