#4006 fix(ci): surface gcloud output on read-replica Data API limit errors

Release capgo-22.28.1 (run 41068982301) failed in Reconcile production read-replica schema with "Cloud SQL Data API rejected the response at its 10 MB response limit". That message comes from a broad regex over gcloud stderr and drops the real output, so the cause is hidden. That job gates supabase_deploy, deploy_api, deploy_files, deploy_plugin_regions and deploy_webapp, so nothing deployed.

This keeps the classified message and appends the trimmed, 4 KB capped gcloud output so the next run shows the real root cause. No workflow changes.

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Summary by CodeRabbit

• Bug Fixes
  • Errors triggered by request or response limits now include normalized cloud command output, providing additional diagnostic context. Limit detection and fallback error behavior remain unchanged, so this update affects the information shown in these errors without changing how limit conditions are handled.