systemupdate: use ref system to prevent executions

Modules/DankBar/Widgets/SystemUpdate.qml

@@ -20,6 +20,10 @@ Rectangle {
 
     signal clicked()
 
+    Ref {
+        service: SystemUpdateService
+    }
+
     width: isVertical ? widgetThickness : (updaterIcon.width + horizontalPadding * 2)
     height: isVertical ? widgetThickness : widgetThickness
     radius: SettingsData.dankBarNoBackground ? 0 : Theme.cornerRadius

Modules/SystemUpdatePopout.qml

@@ -22,6 +22,10 @@ DankPopout {
         triggerScreen = screen;
     }
 
+    Ref {
+        service: SystemUpdateService
+    }
+
     popupWidth: 400
     popupHeight: 500
     triggerX: Screen.width - 600 - Theme.spacingL