Update Ironbank

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/kiwigrid/k8s-sidecar (source)	patch	1.27.1 -> 1.27.2
registry1.dso.mil/ironbank/opensource/prometheus/node-exporter (source)	patch	v1.8.0 -> v1.8.1

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