AC-1740: Add rectorphp as a dependency to magento-coding-standard and run it as part of the GitHub actions

Author: eliseacornejo

.github/workflows/php.yml

@@ -91,4 +91,4 @@ jobs:
         run: composer install  
 
       - name: Run rector
-        run: vendor/bin/rector process Magento2 Magento2Framework PHP_CodeSniffer --dry-run --autload-file vendor/squizlabs/php_codesniffer/autoload.php
+        run: vendor/bin/rector process Magento2 Magento2Framework PHP_CodeSniffer --dry-run --autoload-file vendor/squizlabs/php_codesniffer/autoload.php