Automatic merge from submit-queue (batch tested with PRs 51377, 46580, 50998, 51466, 49749)

feat(#21648 )Add kubectl set env command.

**What this PR does / why we need it**:
#21648
Moved from OpenShift to Kubenetes.
@kargakis @smarterclayton 

**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
NONE
```