Attempted fix for CI

Author: tvdijen

.github/workflows/php.yml

@@ -199,7 +199,7 @@ jobs:
           --excludePackage=phpstan/phpstan-mockery
 
       - name: PHP Code Sniffer
-        run: phpcs
+        run: phpcs . --standard=SlevomatCodingStandard
 
       - name: PHPStan
         run: |