grafandashboard cannot unmarshal number 141.4 into Go struct field Board.panels of type int

[NissesSenap]

Trying to run griffel on a grafana 8 compatible dashboard by linkerd.
Getting the following error: could not parse dashboard: json: cannot unmarshal number 141.4 into Go struct field Board.panels of type int

How to reproduce:

dashboards:
  - name: "linkerd-health"
    source:
      kind: "GrafanaLabs"
      value: "15486"
    patch:
      title: "Linkerd / Health"
    destination:
      format: "Kubernetes"

You can find the dashboard here:

https://grafana.com/grafana/dashboards/15486-linkerd-health/