chore(deps): update container image grafana/grafana-image-renderer to latest@337cdfd by renovate (#24904)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| grafana/grafana-image-renderer | digest | `47e75ed` -> `337cdfd` |

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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
Bot](https://togithub.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC4yMy4wIiwidXBkYXRlZEluVmVyIjoiMzguMjMuMCIsInRhcmdldEJyYW5jaCI6Im1hc3RlciIsImxhYmVscyI6WyJhdXRvbWVyZ2UiLCJ1cGRhdGUvZG9ja2VyL2dlbmVyYWwvbm9uLW1ham9yIl19-->

charts/stable/grafana-image-renderer/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/grafana-image-renderer
   - https://hub.docker.com/r/grafana/grafana-image-renderer
 type: application
-version: 7.1.4
+version: 7.1.5

charts/stable/grafana-image-renderer/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: grafana/grafana-image-renderer
-  tag: latest@sha256:47e75ed1c8d6704f4ceb5c2e9f27fe5d9f3f8ecdcd8b2b85254e6bddbbcbea30
+  tag: latest@sha256:337cdfdf0a2c755473308cf3b957bdc1f94eb8725621ee4b154bd464fc3d045f
 persistence: {}
 portal:
   open: