Automatic merge from submit-queue (batch tested with PRs 39373, 41585, 41617, 41707, 39958)

Owners file related changes for kubectl and docs contributors

- adding a command to kubectl updates the root .generated_docs file requiring root level approval: move .generated_docs under docs/
- run hack/update-generated-docs.sh so the docs are up to date
- add kubectl contributors to test/OWNERS and test/fixtures/pkg/kubectl/OWNERS so they can approve kubectl e2e test changes


```release-note
NONE
```