refactored timetable

lib/api/webuntis/queries/getTimetable/getTimetableCache.dart

@@ -15,7 +15,13 @@ class GetTimetableCache extends RequestCache<GetTimetableResponse> {
     void Function(Exception)? onError,
     required this.startdate,
     required this.enddate,
-  }) : super(RequestCache.cacheMinute, onUpdate, onError: onError ?? RequestCache.ignore) {
+    bool? renew,
+  }) : super(
+          RequestCache.cacheMinute,
+          onUpdate,
+          onError: onError ?? RequestCache.ignore,
+          renew: renew,
+        ) {
     start('wu-timetable-$startdate-$enddate');
   }