fix: major fixes

v1/core/pollers.go

@@ -128,6 +128,7 @@ func (w *Webhook) Start(_ context.Context) (<-chan model.Update, error) {
 }
 
 func (w *Webhook) Stop(ctx context.Context) error {
+	close(w.ch)
 	return w.srv.Shutdown(ctx)
 }
 
@@ -176,8 +177,6 @@ func (lp *LongPoller) Start(ctx context.Context) (<-chan model.Update, error) {
 
 				for _, update := range updates {
 					select {
-					case <-ctx.Done():
-						return
 					case ch <- update:
 					}
 				}