Add support of subquery to ExpressionBuilderInterface::in

[amin-recharge]

Describe the proposed solution
In the Sylius\Component\Grid\Data\ExpressionBuilderInterface::in method, the current definition of in is:
public function in(string $field, array $values);
This means that you cannot pass a subquery to $values. Additionally, since Sylius\Bundle\GridBundle\Doctrine\ORM\ExpressionBuilder is a final class, you cannot inherit it and add this capability only for your project. It would be beneficial to modify the type of $values from array to array|string so that we can pass the subquery to it.

[jakubtobiasz]

Hello @amin-recharge 👋🏼,
I moved your issue to the SyliusGridBundle's repository. Due to BC promise, we won't be able to implement your suggestion :/.

[amin-recharge]

Hey @jakubtobiasz,
Thanks for moving it to the right repository. So, what can we do? Should we add it as another method or include it in the next major release?