chore: update KOTS CLI to v1.129.3

[github-actions]

Automated Package Update: KOTS CLI

This is an automated update of the KOTS (Kubernetes Off-The-Shelf) CLI package.

Changes

• Previous version: 1.128.2
• New version: 1.129.3
• Release notes: https://github.com/replicatedhq/kots/releases/tag/v1.129.3

Platform-specific Vendor Hashes Updated

• Darwin: sha256-ThgM4tfK12bHR1u8paZEifRSPDejcJwDwWwHtjYQQjk=
• Linux: sha256-RBIHqKg/BEqgVVzyQSTNk5s9rHLMvw+KnM123j2Mpr0=

Validation

• Package builds successfully on both macOS and Linux
• Installation tests passed on both platforms
• Vendor hashes calculated and verified for both platforms

Next Steps

• Review the changes and ensure they look correct
• Test the updated package in your environment
• Merge when ready

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This PR was created automatically by the KOTS CLI update workflow

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