[4.x][5.x]: Variant search condition rule for Product conditions

[nfourtythree]

What happened?

Description

To enhance flexibility in filtering the product index, introduce a new condition rule that features a plain text field for searching variants.

This input will be utilized in a variant query, enabling more precise product limitations based on the search results.

Craft CMS version

4.x/5.x

Craft Commerce version

4.x/5.x

[linear[bot]]

PT-2164 [4.x][5.x]: Variant search condition rule for Product conditions