Use prebuild action that will create phpcs annotations

Author: jswift

.github/workflows/php.yml

@@ -38,4 +38,6 @@ jobs:
       run: composer run-script test
 
     - name: Run linter to check code style
-      run: composer run-script check-style
+      uses: chekalsky/phpcs-action@v1
+      with:
+        enable_warnings: true