feature: Add a "kubectl kcp workspace delete" command

[manoelmarques]

Feature Description

Even though one can delete a workspace with kubectl delete workspace myworkspace, I believe there should be also a kubectl kcp workspace delete myworkspace command since there is already a create command.

Proposed Solution

I already have the code implementing it, just need to create formal unit tests now.

In case this issue is approved, I could immediately create a WIP PR with the implementation while I work on the unit tests.

Alternative Solutions

No response

Want to contribute?

• [X] I would like to work on this issue.

Additional Context

No response