[OCPBUGS-16644] Fix nmstate-console-plugin for Single-Stack IPv6 clusters

[orenc1]

Is this a BUG FIX or a FEATURE ?:

Uncomment only one, leave it on its own line:

/kind bug /kind enhancement

What this PR does / why we need it: When a single-stack IPv6 cluster is being used, the nginx server isn't listening on IPv6 requests, just IPv4. Changing the nginx configuration listen directive to [::]:9443 ipv6only=off ssl will accept connections both for IPv6 and IPv4. Also, parametrize the service port. Special notes for your reviewer:

Release note:

fix nmstate-console-plugin in single-stack ipv6 clusters.

[kubevirt-bot]

Hi @orenc1. Thanks for your PR.

I'm waiting for a nmstate member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[orenc1]

hi @qinqon , could you please comment here: /ok-to-test ? thanks

[kubevirt-bot]

@orenc1: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to [this](https://github.com/nmstate/kubernetes-nmstate/pull/1200#issuecomment-1651215255): >hi @qinqon , >could you please comment here: >/ok-to-test >? >thanks Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[qinqon]

/ok-to-test

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: phoracek

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