Update istio/ztunnel Docker tag **Manually update ARM resource & SHA values in hardening_manifest.yaml.**

This MR contains the following updates:

Package	Type	Update	Change
istio/ztunnel		patch	1.24.1 -> 1.24.2
istio/ztunnel	ironbank-docker	patch	1.24.1-distroless -> 1.24.2-distroless
istio/ztunnel	stage	patch	1.24.1-distroless -> 1.24.2-distroless

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