ci: add temporary push trigger for testing workflow

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mpk-droid

.github/workflows/agent-deployment-test.yaml

@@ -8,6 +8,9 @@ name: "QG4: Agent Deployment Health Checks"
 
 on:
   workflow_dispatch:
+  push: # TEMPORARY: remove before merging to main
+    branches:
+      - feat/RHAIENG-4028-ci-health-checks
 
 jobs:
   verify-cluster-connection: