Fix a transient failure in mini_pipeline_graph_spec
This spec failed reliably with a specific run order (see issue), the reasons for which are still unknown. This simplification resolves the failure.
Closes #34323 (closed)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This spec failed reliably with a specific run order (see issue), the reasons for which are still unknown. This simplification resolves the failure.
Closes #34323 (closed)