Automatic merge from submit-queue (batch tested with PRs 59190, 59360). 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>.

Adding benchmarks to envelop encryption integration tests

**What this PR does / why we need it**:
Adding benchmarks for envelop encryption integration tests.
Allows to estimate how envelop encryption may impact the performance of KubeAPI server.

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```