fix(dev-server): Update multivendor plugin property 'currencyCode' (#2184)

Refer: https://github.com/vendure-ecommerce/vendure/discussions/2156#discussioncomment-5778063

packages/dev-server/test-plugins/multivendor-plugin/service/mv.service.ts

@@ -105,7 +105,7 @@ export class MultivendorService {
             code: shopCode,
             sellerId: seller.id,
             token: `${shopCode}-token`,
-            currencyCode: defaultChannel.currencyCode,
+            currencyCode: defaultChannel.defaultCurrencyCode,
             defaultLanguageCode: defaultChannel.defaultLanguageCode,
             pricesIncludeTax: defaultChannel.pricesIncludeTax,
             defaultShippingZoneId: defaultChannel.defaultShippingZone.id,