Replace deprecated `NewSimpleClientset`

Signed-off-by: George Jenkins <gvjenkins@gmail.com>

pkg/kube/client_test.go

@@ -923,7 +923,7 @@ func TestGetPodList(t *testing.T) {
 		responsePodList.Items = append(responsePodList.Items, newPodWithStatus(name, v1.PodStatus{}, namespace))
 	}
 
-	kubeClient := k8sfake.NewSimpleClientset(&responsePodList)
+	kubeClient := k8sfake.NewClientset(&responsePodList)
 	c := Client{Namespace: namespace, kubeClient: kubeClient}
 
 	podList, err := c.GetPodList(namespace, metav1.ListOptions{})
@@ -936,7 +936,7 @@ func TestOutputContainerLogsForPodList(t *testing.T) {
 	namespace := "some-namespace"
 	somePodList := newPodList("jimmy", "three", "structs")
 
-	kubeClient := k8sfake.NewSimpleClientset(&somePodList)
+	kubeClient := k8sfake.NewClientset(&somePodList)
 	c := Client{Namespace: namespace, kubeClient: kubeClient}
 	outBuffer := &bytes.Buffer{}
 	outBufferFunc := func(_, _, _ string) io.Writer { return outBuffer }
@@ -1314,7 +1314,7 @@ func TestIsReachable(t *testing.T) {
 			setupClient: func(t *testing.T) *Client {
 				t.Helper()
 				client := newTestClient(t)
-				client.kubeClient = k8sfake.NewSimpleClientset()
+				client.kubeClient = k8sfake.NewClientset()
 				return client
 			},
 			expectError: false,