Very simple!
just put a timer in your getTimeline :
func getTimeline(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
				var entries: [SimpleEntry] = []
let	entryDate = Calendar.current.date(byAdding: .second, value: 1 , to: Date())!
						 let entry = SimpleEntry(date: entryDate, configuration: configuration)
			
						entries.append(entry)
					
						let timeline = Timeline(entries: entries, policy: .after(entryDate))
var timer = Timer()
timer =	Timer.scheduledTimer(withTimeInterval: 1.0, repeats: true) { (timer) in
						
						WidgetCenter.shared.reloadAllTimelines()
						completion(timeline)
				}