Update Ironbank

This MR contains the following updates:

Package	Update	Change
ironbank/opensource/nginx/nginx	patch	1.25.1 -> 1.25.2
registry1.dso.mil/bigbang-ci/velero-tester	minor	1.0.0 -> 1.1.0
registry1.dso.mil/ironbank/opensource/kubernetes/kubectl	patch	1.27.4 -> 1.27.6

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