OSDOCS#15784: oc-mirror verification RN

[skopacz1]

OSDOCS-15784

Version(s): 4.20 only

This PR adds a release note describing new behavior for the oc-mirror plugin regarding its process for verifying certain information.

QE review:

• QE has approved this change.

Preview: Release Note

[openshift-ci-robot]

@skopacz1: This pull request references OSDOCS-15784 which is a valid jira issue.

In response to this:

OSDOCS-15784

Version(s):

Issue:

Link to docs preview:

QE review:

• QE has approved this change.

Additional information:

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[ocpdocs-previewbot]

🤖 Thu Sep 04 14:26:21 - Prow CI generated the docs preview:

https://98471--ocpdocs-pr.netlify.app/openshift-enterprise/latest/release_notes/ocp-4-20-release-notes.html

[openshift-ci-robot]

@skopacz1: No Jira issue is referenced in the title of this pull request.
To reference a jira issue, add 'XYZ-NNN:' to the title of this pull request and request another refresh with /jira refresh.

In response to this:

OSDOCS-15784

Version(s):

Issue:

Link to docs preview:

QE review:

• QE has approved this change.

Additional information:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[openshift-ci]

@skopacz1: all tests passed!

Full PR test history. Your PR dashboard.

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[ShaunaDiaz]

/lgtm