Update workflow to use setup-php and improve Composer cache setup #2

	name: PHP Composer

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	permissions:
	contents: read

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

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

	# Docs: https://github.com/shivammathur/setup-php
	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: '8.3'
	extensions: mbstring, dom, fileinfo
	coverage: xdebug

	- name: Get composer cache directory
	id: composer-cache
	run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT

	- name: Cache composer dependencies
	uses: actions/cache@v3
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	# Use composer.json for key, if composer.lock is not committed.
	# key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: ${{ runner.os }}-composer-

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

	- name: Run test suite
	run: composer run-script test

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