CNV-66741: Add note about single VNC connection

[abrennan89]

Version(s):
4.21+

Issue:
https://issues.redhat.com/browse/CNV-66741

Link to docs preview:
https://103044--ocpdocs-pr.netlify.app/openshift-enterprise/latest/virt/managing_vms/virt-accessing-vm-consoles.html#virt-connecting-to-vm-console-web_vnc-console

QE review:

• QE has approved this change.

Additional information:

[openshift-ci-robot]

@abrennan89: This pull request references CNV-66741 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.21.0" version, but no target version was set.

In response to this:

Version(s):
4.21+

Issue:
https://issues.redhat.com/browse/CNV-66741

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.

[ocpdocs-previewbot]

🤖 Tue Nov 25 17:24:07 - Prow CI generated the docs preview:

https://103044--ocpdocs-pr.netlify.app/openshift-enterprise/latest/virt/managing_vms/virt-accessing-vm-consoles.html
https://103044--ocpdocs-pr.netlify.app/openshift-rosa-hcp/latest/virt/managing_vms/virt-accessing-vm-consoles.html
https://103044--ocpdocs-pr.netlify.app/openshift-rosa/latest/virt/managing_vms/virt-accessing-vm-consoles.html

[openshift-ci]

@abrennan89: all tests passed!

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[openshift-ci-robot]

@abrennan89: This pull request references CNV-66741 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.21.0" version, but no target version was set.

In response to this:

Version(s):
4.21+

Issue:
https://issues.redhat.com/browse/CNV-66741

Link to docs preview:
https://103044--ocpdocs-pr.netlify.app/openshift-enterprise/latest/virt/managing_vms/virt-accessing-vm-consoles.html#virt-connecting-to-vm-console-web_vnc-console

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.

[dominikholler]

Looks good to me, does it look good to you @rszwajko , too?