Switch from kustomize to oc kustomize

[rebtoor]

We are restoring the "original" behavior but using oc instead of kubectl since it should be available everywhere.

As a pull request owner and reviewers, I checked that:

• Appropriate testing is done and actually running

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[raukadah]

/lgtm
/approve

tested downstream!

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: raukadah

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