Merge pull request #63724 from ravisantoshgudimetla/priority-e2e-beta

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>.

Modify e2e tests to use priorityClass beta client version & switch priorityClass to beta

**What this PR does / why we need it**:
/cc @bsalamat @aveshagarwal @liggitt 

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Part of #57471

**Special notes for your reviewer**:
Once #57963 merges, this could go in.

**Release note**:

```release-note
Modify e2e tests to use priorityClass beta version & switch priorityClass feature to beta
```

pkg/kubectl/cmd/create/create_priorityclass_test.go

@@ -38,7 +38,7 @@ func TestCreatePriorityClass(t *testing.T) {
 	ns := legacyscheme.Codecs
 
 	tf.Client = &fake.RESTClient{
-		GroupVersion:         schema.GroupVersion{Group: "scheduling.k8s.io", Version: "v1alpha1"},
+		GroupVersion:         schema.GroupVersion{Group: "scheduling.k8s.io", Version: "v1beta1"},
 		NegotiatedSerializer: ns,
 		Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
 			return &http.Response{