Improve product_variant filters performance (#8334) (#8691)
Improve product_variant filters performance (#8334) (#8691)

* Improve product_variant filters performance.

* Drop unused gin index

Co-authored-by: Tomasz Szymanski <5998ae35c87d6e732e10953827f6d9cd579a080a@gmail.com>

Co-authored-by: Tomasz Szymanski <5998ae35c87d6e732e10953827f6d9cd579a080a@gmail.com>
mociepka/saleor,mociepka/saleor,mociepka/saleor