add `oc` to the included install commands

[tuyt-ch]

Summary
Also install oc for OpenShift - this would require that the kubectl matches.

Steps to reproduce
n/a

Operating System
MacOS, Linux, Windows

Supporting details
n/a

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Development "done" checklist

• Test case to verify
• Public Documentation updated
• Change added to "release notes" as appropropriate
• Notification to stakeholders (OM, other squads, etc)