fix: raise smoke claude max turns to avoid premature termination

Agent-Logs-Url: https://github.com/github/gh-aw-firewall/sessions/1e1c5602-a0bb-4387-837e-645582cf9f58

Author: Copilot

.github/workflows/smoke-claude.lock.yml

@@ -16,7 +16,7 @@ name: Smoke Claude
 engine:
   id: claude
   model: claude-haiku-4-5
-  max-turns: 8
+  max-turns: 12
 features:
   cli-proxy: true
 strict: true