Merge pull request #60890 from rphillips/tests/lease_endpoint

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

apiserver: master count and lease endpoint test

**What this PR does / why we need it**: Adds a test to make sure master count and lease endpoint reconcilers work well together, so we can bump LeaseEndpoint to beta. Based on Jordan's comment https://github.com/kubernetes/kubernetes/pull/58474#issuecomment-369954890. 

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Issue: #57617
Followup PR: #58474

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
/cc @kubernetes/sig-cluster-lifecycle-api-reviews @kubernetes/sig-cluster-lifecycle-api-reviews

test/integration/master/crd_test.go

@@ -41,7 +41,7 @@ import (
 )
 
 func TestCRDShadowGroup(t *testing.T) {
-	result := kubeapiservertesting.StartTestServerOrDie(t, nil, framework.SharedEtcd())
+	result := kubeapiservertesting.StartTestServerOrDie(t, nil, nil, framework.SharedEtcd())
 	defer result.TearDownFn()
 
 	kubeclient, err := kubernetes.NewForConfig(result.ClientConfig)
@@ -109,7 +109,7 @@ func TestCRDShadowGroup(t *testing.T) {
 func TestCRD(t *testing.T) {
 	defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.Initializers, true)()
 
-	result := kubeapiservertesting.StartTestServerOrDie(t, []string{"--admission-control", "Initializers"}, framework.SharedEtcd())
+	result := kubeapiservertesting.StartTestServerOrDie(t, nil, []string{"--admission-control", "Initializers"}, framework.SharedEtcd())
 	defer result.TearDownFn()
 
 	kubeclient, err := kubernetes.NewForConfig(result.ClientConfig)