chore(deps): update ironbank docker tags

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/opensource/istio-1.8/proxyv2	patch	1.8.2 -> 1.8.6
registry1.dso.mil/ironbank/opensource/istio/istioctl	minor	1.8.2 -> 1.13.2

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