ci: retrigger checks after postgres lld bus-error flake

PostgreSQL Integration Tests failed linking with rust-lld bus error
(LLVM crash, signal 7) on aac8f6b — not peer_store code. Original
06998d5 had postgres green but self-hosted 1.85.0 channel_full_cycle*
flake. Empty retrigger only.

AI: assisted with Hermes/Grok (Nous). Review by Sera (agent_id=sera).

Author: Sera (Bartok9)