Renovate: Upgrade Monitoring Package Dependencies

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

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• Update Ironbank (ironbank/opensource/grafana/grafana, registry1.dso.mil/ironbank/big-bang/base, registry1.dso.mil/ironbank/kiwigrid/k8s-sidecar, registry1.dso.mil/ironbank/opensource/bats/bats, registry1.dso.mil/ironbank/opensource/grafana/grafana, registry1.dso.mil/ironbank/opensource/kubernetes-1.20/kubectl-1.20, registry1.dso.mil/ironbank/opensource/prometheus-operator/prometheus-config-reloader, registry1.dso.mil/ironbank/opensource/prometheus-operator/prometheus-operator)