* Add filters for variant ean, upc, and barcode in product queries and validators * fix: Omit 'q' field from variants in product list and validation parameters * Add tests for admin products filtering by variants ean, upc, and barcode * Add changeset for filter admin products api by variant ean, upc, and barcode --------- Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>