fix(helm): update chart grafana to 8.6.4

[renovate]

This PR contains the following updates:

Package	Update	Change
grafana (source)	patch	8.6.3 -> 8.6.4

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Release Notes

grafana/helm-charts (grafana)

v8.6.4

Compare Source

The leading tool for querying and visualizing time series and metrics.

What's Changed

• [grafana] Add configuration options for the number of retries done by the sidecar by @​cbos in https://github.com/grafana/helm-charts/pull/3454

New Contributors

• @​cbos made their first contribution in https://github.com/grafana/helm-charts/pull/3454

Full Changelog: grafana/helm-charts@helm-loki-6.22.0...grafana-8.6.4

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[github-actions]

--- kubernetes/apps/observability/grafana/app Kustomization: flux-system/grafana HelmRelease: observability/grafana

+++ kubernetes/apps/observability/grafana/app Kustomization: flux-system/grafana HelmRelease: observability/grafana

@@ -13,13 +13,13 @@

     spec:
       chart: grafana
       sourceRef:
         kind: HelmRepository
         name: grafana
         namespace: flux-system
-      version: 8.6.3
+      version: 8.6.4
   dependsOn:
   - name: openebs
     namespace: storage
   install:
     remediation:
       retries: 3

[github-actions]

--- HelmRelease: observability/grafana Deployment: observability/grafana

+++ HelmRelease: observability/grafana Deployment: observability/grafana

@@ -19,13 +19,13 @@

   template:
     metadata:
       labels:
         app.kubernetes.io/name: grafana
         app.kubernetes.io/instance: grafana
       annotations:
-        checksum/dashboards-json-config: be38df5813ab6e89b86b6c425e467b356e9aab1b6d3f652119cd3347d64bb159
+        checksum/dashboards-json-config: bb6254008be90545ae612ff651cd18301373e272d51683a33b68c1f384011e37
         checksum/sc-dashboard-provider-config: c942752180ddff51a3ab63b7d256cf3d856d90757b6f804cbc420562989d5a84
         kubectl.kubernetes.io/default-container: grafana
     spec:
       serviceAccountName: grafana
       automountServiceAccountToken: true
       securityContext: