Automatic merge from submit-queue (batch tested with PRs 42740, 44980, 45039, 41627, 45044)

Improved code coverage for /pkg/kubelet/types

**What this PR does / why we need it**:
The test coverage for /pkg/kubelet/types was increased from 50% to 87.5%

**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**:

**Release note**:

```release-note
```