chore(helm): update image docker.io/grafana/grafana-image-renderer digest to d5e979d (#39912)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/grafana/grafana-image-renderer | digest | `1948b22` ->
`d5e979d` |

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

@@ -36,5 +36,5 @@ 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: 8.6.0
+version: 8.6.1
 

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

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: docker.io/grafana/grafana-image-renderer
-  tag: latest@sha256:1948b22431429997a45e9fede28185ddb0cb3608d0c7f8517c9dee267201b677
+  tag: latest@sha256:d5e979de858ab76eec7f6ba23170cae5bfcceb7e48f64802443d1db96c16b77b
 persistence: {}
 
 securityContext: