add wait for primary death

.gitea/workflows/reload-act-runner.yaml

@@ -18,9 +18,22 @@ jobs:
       stack_name: gitea_act_runner
       # the secondary runner executes the primary restart webhook
       runs_on_label: runner-secondary
+      # We use a detached webhook call so primary doesn't hang if the Gitainer stack takes 5 minutes to rebuild, and it avoids bridge network drop edge cases
+      delayed_silent: true
+      
+  wait-for-primary-death:
+    needs: [diff, reload-primary]
+    if: ${{ needs.diff.outputs.is_changed == 'true' }}
+    runs-on: runner-secondary
+    steps:
+      - name: Wait for Gitainer to kill the secondary runner
+        run: |
+          echo "The detached webhook container sleeps for 10s before firing."
+          echo "We wait 30s here to guarantee the webhook fired and Gitainer destroyed the old secondary runner."
+          sleep 30
       
   reload-secondary:
-    needs: [diff, reload-primary]
+    needs: [diff, wait-for-primary-death]
     if: ${{ needs.diff.outputs.is_changed == 'true' }}
     # ensuring the primary actually survived and restarted successfully
     uses: https://gitea.chromart.cc/martin/chromart-gitea-actions/.gitea/workflows/gitainer-deploy.yaml@main