fix error message handling activating smtp

[ZITADOPER-7]

src/internal/controller/zitadelcluster_controller.go

@@ -584,8 +584,10 @@ func (r *ZitadelClusterReconciler) reconcileSMTPConfig(ctx context.Context, zita
 	if _, err := adminClient.ActivateSMTPConfig(ctx, &adm.ActivateSMTPConfigRequest{
 		Id: smtpId,
 	}); err != nil {
+		if !strings.Contains(err.Error(), "AlreadyActive") {
 			return ctrl.Result{}, fmt.Errorf("Error activating SMTP config: %v", err)
 		}
+	}
 	patch := client.MergeFrom(zitadel.DeepCopy())
 	zitadel.Status.SMTPProviderId = smtpId
 	return ctrl.Result{}, r.Status().Patch(ctx, zitadel, patch)