Allow select input for data-ajax-cart-quantity-input

[leo-cheron]

Currently only "text" or "number" inputs are allowed. "select-one" input type is better suited in many cases, and it would make sense to also allow it.

[EvgeniyMukhamedjanov]

Hi @leo-cheron ,

Thank you for noticing.
I've added HTMLSelecteElement check to the same line but forgot to add type for it.
I saw you fixed it on your branch. Did you test if that works for you?
Can you make a PR, I'll test it as well.

UPD Ignore me, I've just added this feature to the upcoming release :-)

[leo-cheron]

Perfect, thanks!