The following is not supported:

```ruby
allow_any_instance_of(Geo::NodeStatusService).to receive(:call) { build(:geo_node_status, :healthy, cursor_last_event_id: 3) }
allow_any_instance_of(Geo::NodeStatusService).to receive(:call) { build(:geo_node_status, :healthy, cursor_last_event_id: 10) }
```

So instead, mock `Geo::NodeStatusService.new` and make it return a
`double` that can be used to mock all the things.