feat(helm): update chart grafana to 8.6.0

[renovate]

This PR contains the following updates:

Package	Update	Change
grafana (source)	minor	8.5.12 -> 8.6.0

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Release Notes

grafana/helm-charts (grafana)

v8.6.0

Compare Source

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

What's Changed

• [grafana] Implement Gateway API by @​jkroepke in https://github.com/grafana/helm-charts/pull/3400

Full Changelog: grafana/helm-charts@tempo-vulture-0.7.0...grafana-8.6.0

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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: 8.5.12
+      version: 8.6.0
   install:
     remediation:
       retries: 3
   interval: 30m
   upgrade:
     cleanupOnFail: true

[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: b55281a0107750ec9e38f8eb60512e29adb0d3caedb6757ac3c8665f3401403c
+        checksum/dashboards-json-config: c233d0107a820711ae192415385c9e77f1b34b67f5f81fc4fd9e9072e4f6f7c3
         checksum/sc-dashboard-provider-config: c942752180ddff51a3ab63b7d256cf3d856d90757b6f804cbc420562989d5a84
         kubectl.kubernetes.io/default-container: grafana
     spec:
       serviceAccountName: grafana
       automountServiceAccountToken: true
       securityContext: