Draft: Renovate Istio Update to 1.23.4

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/opensource/istio/install-cni (source)	minor	1.23.3 -> 1.23.4
registry1.dso.mil/ironbank/opensource/istio/pilot (source)	minor	1.23.3 -> 1.23.4
registry1.dso.mil/ironbank/opensource/istio/proxyv2	minor	1.23.3 -> 1.23.4
registry1.dso.mil/ironbank/opensource/kubernetes/kubectl (source)	patch	v1.30.6 -> v1.30.8
registry1.dso.mil/ironbank/tetrate/istio/install-cni (source)	minor	1.23.3-tetratefips-v0 -> 1.23.4-tetratefips-v0
registry1.dso.mil/ironbank/tetrate/istio/pilot (source)	minor	1.23.3-tetratefips-v0 -> 1.23.4-tetratefips-v0
registry1.dso.mil/ironbank/tetrate/istio/proxyv2 (source)	minor	1.23.3-tetratefips-v0 -> 1.23.4-tetratefips-v0
registry1.dso.mil/ironbank/tetrate/istio/proxyv2 (source)	minor	1.23.3 -> 1.23.4

Complete MR checklist

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• Followed upgrade instructions outlined in docs/DEVELOPMENT_MAINTENANCE.md
• Update Docs with new/updated steps as needed
• Tested and Validated Changes made with supporting info like logs or screenshots from test pipelines

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• Tested and Validated changes

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This MR was automatically generated by Renovate Bot.

Upgrade Notices

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