Renovate: Upgrade Monitoring Package Dependencies

• Follow steps in package update docs to upgrade the package.

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• Update Ironbank (registry1.dso.mil/ironbank/big-bang/grafana/grafana-plugins, registry1.dso.mil/ironbank/kiwigrid/k8s-sidecar, registry1.dso.mil/ironbank/opensource/ingress-nginx/kube-webhook-certgen)