Helm Chart - Grafana Dashboards Label - Missing metamonitoring.dashboards.labels

[bulmust]

Describe the bug

In Mimir-Distributed Helm Charts default value, there is a part for metamonitoring.dashboards.labels but this does not added to grafana-dashboards.yaml

To Reproduce

1. Deploy Mimir-distributed using helm chart with following value.

# values.yaml
metaMonitoring:
  dashboards:
    enabled: true
  labels:
    grafana_dashboard: "hello"

2. The configmap does not change. For example

# kubectl get configmaps mimir-alertmanager-dashboard -oyaml
...
Labels:
    grafana_dashboard=1
...

Expected behavior

...
Labels:
    grafana_dashboard="hello"
...

Environment

• Infrastructure: Kubernetes
• Deployment tool: helm

Additional Context

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