Use [weak self] within sink that creates a Task {}

Not using [weak self] here strongly captures self within a Task and doesn't release aggregate model after closing POS

Author: staskus

WooCommerce/Classes/POS/Models/PointOfSaleAggregateModel.swift

@@ -184,7 +184,7 @@ extension PointOfSaleAggregateModel {
                     }
                 }
                 .removeDuplicates()
-                .sink { _ in
+                .sink { [weak self] _ in
                     Task { @MainActor [weak self] in
                         await self?.collectCardPayment()
                     }