Updates the `helm.sh/chart` label in the Grafana dashboard ConfigMap
to use `{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}`.
This resolves a Helm linting error caused by an incorrect template reference.
The previous commit added the Grafana dashboard as a ConfigMap:
feat: Add Grafana dashboard as ConfigMap
Adds the Grafana dashboard for iperf3-monitor as a ConfigMap to the Helm chart.
The dashboard is sourced from the project's README and stored in
`charts/iperf3-monitor/grafana/iperf3-dashboard.json`.
A new template `charts/iperf3-monitor/templates/grafana-dashboard-configmap.yaml`
creates the ConfigMap, loading the dashboard JSON and labeling it with
`grafana_dashboard: "1"` to enable auto-discovery by Grafana.
Adds the Grafana dashboard for iperf3-monitor as a ConfigMap to the Helm chart.
The dashboard is sourced from the project's README and stored in
`charts/iperf3-monitor/grafana/iperf3-dashboard.json`.
A new template `charts/iperf3-monitor/templates/grafana-dashboard-configmap.yaml`
creates the ConfigMap, loading the dashboard JSON and labeling it with
`grafana_dashboard: "1"` to enable auto-discovery by Grafana.
Adds the Grafana dashboard for iperf3-monitor as a ConfigMap to the Helm chart.
The dashboard is sourced from the project's README and stored in
`charts/iperf3-monitor/grafana/iperf3-dashboard.json`.
A new template `charts/iperf3-monitor/templates/grafana-dashboard-configmap.yaml`
creates the ConfigMap, loading the dashboard JSON and labeling it with
`grafana_dashboard: "1"` to enable auto-discovery by Grafana.
