add style check

Author: joselfonseca

.github/workflows/run-tests.yml

@@ -37,3 +37,6 @@ jobs:
           php artisan passport:keys
       - name: Execute tests
         run: vendor/bin/phpunit
+
+      - name: Test Code Style php-cs-fixer
+        run: vendor/bin/php-cs-fixer fix --config=.php_cs.dist -v --dry-run --stop-on-violation --using-cache=no