Updated dependencies for kf

[matix522]

Proposed Changes

• Security: Upgraded Anthos Service Mesh to 1.29.7-asm.2
• Changed: Updated subresource-apiserver and build TaskRun Workload Identity init container (wait-for-wi) image to cloud-sdk:alpine to prevent image pull errors.
• Changed: Aligned release asmcli installer script and gateway samples to version 1.29.
• Infrastructure: Updated Cloud Build pipelines and release tooling to use active cloud-sdk:alpine builder images.

Release Notes

* `Security`: Upgraded Anthos Service Mesh to 1.29.7-asm.2 to resolve CVE-2026-73513 (GCP-2026-057).
* `Changed`: Updated subresource-apiserver and build TaskRun Workload Identity init container (wait-for-wi) image to cloud-sdk:alpine to prevent image pull errors.
* `Changed`: Aligned release asmcli installer script and gateway samples to version 1.29.
* `Infrastructure`: Updated Cloud Build pipelines and release tooling to use active cloud-sdk:alpine builder images.

Risks and mitigations

Low risk. Standard patch release updating Anthos Service Mesh to latest security patch and updating Cloud SDK base images.

Dependencies

Dependency	Version
Tekton	v1.12.2
Anthos Service Mesh	1.29.7-asm.2
Config Connector	1.153.0

[jakweg]

LGTM