Renovate: Istiod update v1.26.2

This MR contains the following updates:

Package	Update	Change
istiod	patch	1.26.1 -> 1.26.2

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

• Supporting info tracked in the Istio-crd MR: istio-crds!22 (merged)

Reviewer only

• Tested and Validated changes

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Upgrade Notices

"N/A"