fix unittest case

Signed-off-by: jiangdong <[email protected]>

Author: jiangdong

pkg/internal/controller/controller_test.go

@@ -636,7 +636,7 @@ var _ = Describe("controller", func() {
 
 			By("Calling startEventSourcesAndQueueLocked multiple times in parallel")
 			var wg sync.WaitGroup
-			for i := 1; i <= 5; i++ {
+			for range 5 {
 				wg.Go(func() {
 					err := ctrl.startEventSourcesAndQueueLocked(ctx)
 					// All calls should return the same nil error