ci: avoid deprecated set-output command #109

	name: YAML

	on:
	push:
	paths:
	- '**.yaml'
	- '**.yml'
	pull_request:
	paths:
	- '**.yaml'
	- '**.yml'

	jobs:
	yaml-validation:
	name: YAML validation
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 1
	- name: Setup PHP version
	uses: shivammathur/setup-php@v2
	with:
	php-version: 8.1
	extensions: mbstring
	- 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 }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
	restore-keys: ${{ runner.os }}-composer-
	- name: Install composer dependencies
	run: \|
	composer update --no-progress --prefer-dist --optimize-autoloader
	- name: Lint yaml files
	run: \|
	make yaml-lint

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