chore(evals): bump submodule to antigravity rate-limit fix (79f9963)
Serialize antigravity against the Gemini Code Assist rate limit
(max_concurrency=1), diagnose 429/RESOURCE_EXHAUSTED honestly instead of as
auth, fail-fast on a latched window, and tolerant preflight OK match.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Drew Ritter