Update php.yml
Update php.yml

Removed php-versions 7.4 due to vunerability fix of phpcodesniffer
boxbilling/boxbilling,gOOvER/boxbilling,gOOvER/boxbilling,boxbilling/boxbilling,boxbilling/boxbilling,gOOvER/boxbilling,boxbilling/boxbilling,gOOvER/boxbilling