Finalize devworkspace to workspace renaming

[sleshchenko]

What does this PR do?

Finalize devworkspace to workspace renaming.
It depends on devfile/devworkspace-operator#322. ⚠️ after <- is merged, it's needed to update go.mod versions before merging.

What issues does this PR fix or reference?

it's done for devfile/devworkspace-operator#321

[metlos]

The failed PR check is curious - https://github.com/che-incubator/devworkspace-che-operator/pull/31/checks?check_run_id=2237523423. Are you using an old version of controller-gen:0.3.0 (and therefore apiextensions.k8s.io/v1beta1 for the CRDs) intentionally in DWO?

[sleshchenko]

Are you using an old version of controller-gen:0.3.0 (and therefore apiextensions.k8s.io/v1beta1 for the CRDs) intentionally in DWO?

Well, nobody care about the newer controller-gen usage, and AFAIS, the only difference is formatting, but I may be wrong.
But it suggests that both of DWO and this repo have issue: rely on the installed version when specific is needed.
The fix is to download the required versions into cache folder and redownload it when version is not right, like we do here https://github.com/devfile/devworkspace-operator/blob/main/deploy/generate-deployment.sh#L130
But it's out of this issue.

[metlos]

LGTM. Please make sure the deps in go.mod are up-to-date before merging.

[sleshchenko]

set the right version for DWO