Add PHP 8.4, remove PHP 8.1 #29

	on: [push]
	name: PHP checks
	jobs:
	composer-check:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	php-versions: ['8.2', '8.3', '8.4']
	name: PHP ${{ matrix.php-versions }} tests
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-versions }}
	tools: cs2pr

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

	- name: Cache dependencies
	uses: actions/cache@v4
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}

	- name: Run Composer install
	run: composer install --prefer-dist

	- name: Set default Git branch name
	run: git config --global init.defaultBranch main

	- name: Run PHP checks
	run: composer phpcheck

	- name: Run PHPUnit
	run: composer phpunit

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