chore(deps): update container image grafana/grafana to v11.2.0@408afb9 by renovate (#25590)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| grafana/grafana | minor | `11.1.5` -> `11.2.0` |

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> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

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This PR has been generated by [Renovate
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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC41NS40IiwidXBkYXRlZEluVmVyIjoiMzguNTUuNSIsInRhcmdldEJyYW5jaCI6Im1hc3RlciIsImxhYmVscyI6WyJhdXRvbWVyZ2UiLCJ1cGRhdGUvZG9ja2VyL2dlbmVyYWwvbm9uLW1ham9yIl19-->

charts/premium/grafana/Chart.yaml

@@ -6,7 +6,7 @@ annotations:
   truecharts.org/min_helm_version: "3.11"
   truecharts.org/train: premium
 apiVersion: v2
-appVersion: 11.1.5
+appVersion: 11.2.0
 dependencies:
   - name: common
     version: 24.1.5
@@ -37,4 +37,4 @@ sources:
   - https://hub.docker.com/r/grafana/grafana
   - https://quay.io/kiwigrid/k8s-sidecar
 type: application
-version: 17.2.8
+version: 17.3.0

charts/premium/grafana/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: grafana/grafana
   pullPolicy: IfNotPresent
-  tag: 11.1.5@sha256:f4796c6227f4acb0b0dfef12edc2c732f60f18f65a6cf005313700c0896aaa30
+  tag: 11.2.0@sha256:408afb9726de5122b00a2576763a8a57a3c86d5b0eff5305bc994ceb3eb96c3f
 
 sidecarImage:
   repository: quay.io/kiwigrid/k8s-sidecar