Call non-blocking informerFactory.Start synchronously to avoid races

Signed-off-by: Dr. Stefan Schimanski <stefan.schimanski@gmail.com>

pkg/controller/volume/ephemeral/controller_test.go

@@ -152,7 +152,7 @@ func TestSyncHandler(t *testing.T) {
 			ec, _ := c.(*ephemeralController)
 
 			// Ensure informers are up-to-date.
-			go informerFactory.Start(ctx.Done())
+			informerFactory.Start(ctx.Done())
 			informerFactory.WaitForCacheSync(ctx.Done())
 			cache.WaitForCacheSync(ctx.Done(), podInformer.Informer().HasSynced, pvcInformer.Informer().HasSynced)