[Yadan-Wei]

Issue #, if available:

Description of changes:

Adds the sa-west-1 registry (434457397001) to the PyTorch training image URI config for versions 2.8.0, 2.9.0 and 2.10.0. The CPU and GPU SageMaker images for these versions are available in that region.

This is the pytorch.json counterpart of #6507, which adds sa-west-1 to the other image URI configs. Only these three registry entries change; the rest of the file is untouched.

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[github-actions]

🤖 AI code review

This PR adds the sa-west-1 registry entry (434457397001) to the PyTorch training image URI config for versions 2.8.0, 2.9.0, and 2.10.0. The additions are data-only, alphabetically placed between sa-east-1 and us-east-1, and use the same sa-west-1 account ID established in PR #6478. The change is backward compatible and matches the PR's stated scope. The PR looks clean; no issues found.

_{Reviewed commit 70718e6. Automated review; verify before acting.}

[github-actions]

🤖 AI code review

This PR adds the sa-west-1 registry (434457397001) to the PyTorch training image URI config for versions 2.8.0, 2.9.0, and 2.10.0. The entries are inserted in correct alphabetical order (between sa-east-1 and us-east-1), the account ID matches the sa-west-1 registry account established in precedent #6478, and the change is a backward-compatible data-only addition. No issues found.

_{Reviewed commit 52ce79d. Automated review; verify before acting.}

[github-actions]

🤖 AI code review

This PR adds the sa-west-1 registry (434457397001) to the PyTorch training image URI config for versions 2.8.0, 2.9.0 and 2.10.0 in pytorch.json. The change is data-only: the account ID matches the sa-west-1 precedent from PR #6478, entries are placed in correct alphabetical order (after sa-east-1), and all three versions are updated consistently within the training scope. No code issues found. As a non-blocking note, per prior guidance (Source: #6478), please confirm the PyTorch CPU/GPU images are actually published in sa-west-1 upstream before merge.

_{Reviewed commit 4b537f0. Automated review; verify before acting.}

[github-actions]

🤖 AI code review

This is a data-only change adding the sa-west-1 registry (434457397001) to the PyTorch training image URI config for versions 2.8.0, 2.9.0 and 2.10.0. The account ID matches the established sa-west-1 precedent (PR #6478), the entries are inserted in correct alphabetical order between sa-east-1 and us-east-1, and no version aliases or existing region sets are narrowed, so there is no backward-compatibility risk. The change looks clean.

_{Reviewed commit c8e17ca. Automated review; verify before acting.}