Update dependencies (#1841)

vendor/github.com/mattermost/mattermost-server/v6/model/cloud.go

@@ -11,8 +11,6 @@ const (
 	EventTypeSendAdminWelcomeEmail = "send-admin-welcome-email"
 	EventTypeTrialWillEnd          = "trial-will-end"
 	EventTypeTrialEnded            = "trial-ended"
-	JoinLimitation                 = "join"
-	InviteLimitation               = "invite"
 )
 
 var MockCWS string
@@ -180,12 +178,6 @@ type FailedPayment struct {
 type CloudWorkspaceOwner struct {
 	UserName string `json:"username"`
 }
-type SubscriptionStats struct {
-	RemainingSeats int    `json:"remaining_seats"`
-	IsPaidTier     string `json:"is_paid_tier"`
-	IsFreeTrial    string `json:"is_free_trial"`
-}
-
 type SubscriptionChange struct {
 	ProductID string `json:"product_id"`
 }