Update istio-cni to v1.29.0

This MR contains the following updates:

Package	Update	Change
cni	minor	1.28.3 -> 1.29.0
registry1.dso.mil/ironbank/opensource/istio/install-cni (source)	minor	1.28.3 -> 1.29.0

Complete MR checklist

Assignee

• 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

Add supporting info below

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Linked Issue

Issue #37 (closed)

Reviewer only

• Tested and Validated changes

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Release Notes

istio/istio (cni)

v1.29.0: Istio 1.29.0

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Artifacts Release Notes

v1.28.4: Istio 1.28.4

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Artifacts Release Notes

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this MR and you won't be reminded about these updates again.

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This MR was automatically generated by Renovate Bot.

Upgrade Notices

N/A