MM-43084 update product limits through webhook and websocket (#20076)

* Define interfaces for updating subscriptions and product limits from CWS webhook.

einterfaces/cloud.go

@@ -10,6 +10,7 @@ import (
 type CloudInterface interface {
 	GetCloudProducts(userID string, includeLegacyProducts bool) ([]*model.Product, error)
 	GetCloudLimits(userID string) (*model.ProductLimits, error)
+	UpdateSubscriptionFromHook(*model.ProductLimits, *model.Subscription) error
 
 	CreateCustomerPayment(userID string) (*model.StripeSetupIntent, error)
 	ConfirmCustomerPayment(userID string, confirmRequest *model.ConfirmPaymentMethodRequest) error