Allow kube-state-metrics configuration

[sca-]

Continues #1572 as it's rotten.

Please provide a way to configure --metric-labels-allowlist for kube-state-metrics
https://github.com/openshift/cluster-monitoring-operator/blob/master/assets/kube-state-metrics/deployment.yaml#L42

[dbazhal]

Plussing, ability of passing this as a flag/env could help

[openshift-bot]

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/lifecycle stale

[dbazhal]

/remove-lifecycle stale
/lifecycle frozen