Update registry1.dso.mil/ironbank/opensource/kubernetes/kubectl Docker tag to v1.29.5

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/opensource/kubernetes/kubectl (source)	patch	v1.29.4 -> v1.29.5

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Upgrade Notices

Update helm chart version to 6.4.0 and kubectl version to 1.29.5.