test: stabilize Helm Job teardown

Author: shirkevich

examples/helm/stacks/deploy/dev.yaml

@@ -73,6 +73,12 @@ components:
       release:
         wait:
           jobs: true
+        # Helm's watcher can remain blocked after deleting a completed ordinary
+        # Job even though the release resources are already gone. Keep watcher
+        # coverage for install and use deterministic legacy cleanup here.
+        delete:
+          wait:
+            strategy: legacy
       values:
         hooks:
           enabled: false