Update .gitignore to exclude .phpunit.result.cache

Co-authored-by: samdark <[email protected]>

Author: Copilot

.gitignore

@@ -26,6 +26,7 @@ composer.phar
 /phpunit.phar
 /phpunit.xml
 /.phpunit.cache
+/.phpunit.result.cache
 
 # PHP CS Fixer
 /.php-cs-fixer.cache