Merge pull request #53914 from bsalamat/pdb

Automatic merge from submit-queue (batch tested with PRs 53903, 53914, 54374). 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>.

Add PodDisruptionBudget to scheduler cache.

**What this PR does / why we need it**:
This is the first step to add support for PodDisruptionBudget during preemption. This PR adds PDB to scheduler cache.

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

**Special notes for your reviewer**: None

**Release note**:

```release-note
Add PodDisruptionBudget to scheduler cache.
```

ref/ #53913

test/integration/scheduler/util.go

@@ -76,6 +76,7 @@ func initTest(t *testing.T, nsPrefix string) *TestContext {
 		context.informerFactory.Extensions().V1beta1().ReplicaSets(),
 		context.informerFactory.Apps().V1beta1().StatefulSets(),
 		context.informerFactory.Core().V1().Services(),
+		context.informerFactory.Policy().V1beta1().PodDisruptionBudgets(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 		true,
 	)