Automatic merge from submit-queue (batch tested with PRs 64034, 64072, 64146, 64059, 64161). 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>.

Fixing wrong unit test naming of (pkg/controller/podautoscaler)

**What this PR does / why we need it**:
/kind cleanup

Fixing wrong unit test naming of (pkg/controller/podautoscaler). Unit tests will not be executed, function name of _test.go file must start with Test*.

**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
```