Expose custom health check ports in the firewall

[spencerhance]

Fixes the issue where custom health check ports are not exposed via the firewall

/assign @rramkumar1

[k8s-ci-robot]

Hi @spencerhance. Thanks for your PR.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: spencerhance
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[freehan]

/ok-to-test