Automatic merge from submit-queue

Add German translation for kubectl

**What this PR does / why we need it**:
This PR provides a first attempt to translate kubectl in German (related to #40645, #45573, #45562, #40591, #46559, #50155).

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
No issues

**Special notes for your reviewer**:
This PR requires German people to assist in the review. I'm native in German with BSc in Business Information Technology.

**Release note**:
```release-note
Adding German translation for kubectl
```