Increase timeout in benchmark case (kubernetes-sigs#1437)

* test: increase timeout for pod deletion in benchmark case

* update timeout for benchmark hack

* address review

Author: anson627

test/e2e/benchmark.go

@@ -217,7 +217,7 @@ func CaseBenchmark(kwokctlPath, clusterName string) *features.FeatureBuilder {
 			return ctx
 		}).
 		Assess("Delete pods", func(ctx context.Context, t *testing.T, c *envconf.Config) context.Context {
-			ctx0, cancel := context.WithTimeout(ctx, 60*time.Second)
+			ctx0, cancel := context.WithTimeout(ctx, 90*time.Second)
 			defer cancel()
 
 			err := scaleDeletePod(ctx0, t, kwokctlPath, clusterName, 10000)

test/e2e/benchmark_hack.go

@@ -186,7 +186,7 @@ func CaseBenchmarkWithHack(kwokctlPath, clusterName string) *features.FeatureBui
 			return ctx
 		}).
 		Assess("Delete pods", func(ctx context.Context, t *testing.T, c *envconf.Config) context.Context {
-			ctx0, cancel := context.WithTimeout(ctx, 20*time.Second)
+			ctx0, cancel := context.WithTimeout(ctx, 30*time.Second)
 			defer cancel()
 
 			err := scaleDeletePodWithHack(ctx0, t, kwokctlPath, clusterName, 10000)