update pint guidelines to use --dirty flag

Author: yitzwillroth

.ai/pint/core.blade.php

@@ -1,4 +1,4 @@
 ## Laravel Pint Code Formatter
 
-- You must run `vendor/bin/pint` before finalizing changes to ensure your code matches the project's expected style.
+- You must run `vendor/bin/pint --dirty` before finalizing changes to ensure your code matches the project's expected style.
 - Do not run `vendor/bin/pint --test`, simply run `vendor/bin/pint` to fix any formatting issues.