[Upstream] Review xai-org/grok-build changes

[github-actions]

A newer state of xai-org/grok-build is available for review.

• Last reviewed commit: 07b2f714
• Current upstream commit: 9684fa3cdbf2995e30ea8b9b637f1db008f144fc
• Last reviewed upstream version: 1.0.8
• Current upstream version: 1.0.10
• Last reviewed release: none
• Current upstream release: none

Review and port relevant changes according to the upstream sync procedure. Do not merge upstream wholesale or update .github/upstream.json before the selected changes pass the Chutes Build quality gates.