Merge pull request #41221 from kow3ns/ss-upgrade-test

Automatic merge from submit-queue (batch tested with PRs 41548, 41221)

StatefulSet Upgrade Test

Adds StatefulSet upgrade tests and moves common functionality into the framework package. This removes the potential for cyclic dependencies while allowing for code reuse.
```release-note
NONE
```

test/e2e/examples.go

@@ -330,7 +330,7 @@ var _ = framework.KubeDescribe("[Feature:Example]", func() {
 				}
 			})
 			// using out of statefulset e2e as deleting pvc is a pain
-			deleteAllStatefulSets(c, ns)
+			framework.DeleteAllStatefulSets(c, ns)
 		})
 	})