Draft: Update Ironbank Docker tags - autoclosed

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/kiwigrid/k8s-sidecar	minor	1.10.6 -> 1.14.2
registry1.dso.mil/ironbank/opensource/bats/bats	minor	1.2.1 -> 1.5.0
registry1.dso.mil/ironbank/opensource/grafana/grafana	major	7.5.2 -> 8.1.6
registry1.dso.mil/ironbank/opensource/jet/kube-webhook-certgen	patch	v1.5.1 -> v1.5.2
registry1.dso.mil/ironbank/opensource/kubernetes-1.20/kubectl-1.20	patch	v1.20.8 -> v1.20.11
registry1.dso.mil/ironbank/opensource/prometheus-operator/prometheus-config-reloader	minor	v0.46.0 -> v0.51.2
registry1.dso.mil/ironbank/opensource/prometheus-operator/prometheus-operator	minor	v0.46.0 -> v0.51.2
registry1.dso.mil/ironbank/opensource/prometheus/alertmanager	minor	v0.21.0 -> v0.23.0
registry1.dso.mil/ironbank/opensource/prometheus/node-exporter	minor	v1.0.1 -> v1.2.2
registry1.dso.mil/ironbank/opensource/prometheus/prometheus	minor	v2.25.0 -> v2.30.3

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