Automatic merge from submit-queue (batch tested with PRs 51229, 50131, 51074, 51167, 51213)

Fix typos in kubefed

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

Fix some typos in kubefed.

**Which issue this PR fixes** : fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```