OCPBUGS#66950 and 66954: Update 4.20.0 RNs for OLM NP support

[michaelryanpeter]

Version(s): 4.20

Issue:

• https://issues.redhat.com/browse/OCPBUGS-66950
• https://issues.redhat.com/browse/OCPBUGS-66954

Link to docs preview:

• https://103900--ocpdocs-pr.netlify.app/openshift-enterprise/latest/release_notes/ocp-4-20-release-notes.html#ocp-release-notes-extensions-network-policy-support_release-notes
• https://103900--ocpdocs-pr.netlify.app/openshift-enterprise/latest/release_notes/ocp-4-20-release-notes.html#ocp-release-notes-olm-network-policy-support_release-notes

QE review:

• [ ] QE has approved this change.

Additional information:

• Change management acks are in https://github.com/openshift/openshift-docs/pull/103592.
• Workflow approved by @kalexand-rh via Slack DM.