refactor: github action steps with composer scripts

Author: csanjuanc

.github/workflows/php.yml

@@ -25,7 +25,7 @@ jobs:
       run: composer install --prefer-dist --no-progress
 
     - name: PHP Lint
-      run: vendor/bin/php-cs-fixer fix --dry-run -v
+      run: composer lint:check
 
     - name: PHPUnit Tests
-      run: vendor/bin/phpunit
+      run: composer phpunit