Correct cilium metrics port mapping

[bakito]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Currently the prometheus scrape annotations in metrics services point to wrong ports.
They point to the service port, but must point to the port exposed on the port, as prometheus queries the pods not the service

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Use correct ports in cilium metrics services if metrics are enabled.

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[bakito]

It would be nice if, the official helm Chart for cilium could be used as proposed in #9887 .

Like that it would not be needed to separately maintain the resources here.

[yankay]

/ok-to-test

[floryut]

@bakito Thank you

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bakito, floryut

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[yankay]

Thanks @bakito
/lgtm