tests: refresh providers baseline after cogitate tier:3 strip
Follow-up to 815ec9af. The 9 cogitate talents that lost their hardcoded
tier: 3 now report tier: 2 (the system default after the cogitate
provider flip to google + TIER_FLASH). Captured by re-running
make update-api-baselines and committing only the providers.json delta.
Other baselines that drifted in the run (transcribe runtime label,
preview unicode escaping, talents-day alphabetical sort) were unrelated
env drift and were discarded.