This commit includes a minor modification in the `phpstan.dist.neon` file where the `excludePaths`
value has been updated. Besides, a conditional check has been added in the `onPackageSetup`
function, under `Events.php` in the `src/QUI/ERP/Coupons` directory, to only proceed if the package
name is 'quiqqer/coupons'. This additional check generally improves the efficiency and correctness
of the package setup process.

This commit modifies the phpstan.dist.neon to exclude the DigitalCouponProductType.php file from
being analyzed by PHPStan. This was necessary due to consistent unresolvable errors.