chore(manifest): update runtime manifests

[github-actions]

Automated manifest update from upstream sources.

This PR was created by the Update Manifests workflow.

Please review the changes to ensure the URLs and checksums are correct.

[CalvinAllen]

Closing this PR - it was generated by the wrong workflow (update-manifests.yml) which:

1. Loses 117 Node.js versions (820 found upstream → only 703 in generated manifest) because it skips versions when it can't fetch checksums
2. Removes sha256_source tracking field
3. Points URLs to upstream instead of our controlled mirror (builds.dtvem.io)

The correct workflow is generate-manifests-from-r2.yml which reads from our R2-hosted binaries and properly handles checksums for all versions.

The update-manifests.yml workflow will be removed to prevent future conflicts.