chore(grafana-image-renderer): update image docker.io/grafana/grafana-image-renderer digest to b4765f2 (#44010)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/grafana/grafana-image-renderer | digest | `43ea0bd` ->
`b4765f2` |

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

@@ -38,5 +38,5 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/grafana-image-renderer
   - https://hub.docker.com/r/grafana/grafana-image-renderer
 type: application
-version: 8.13.15
+version: 8.13.16
 

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

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: docker.io/grafana/grafana-image-renderer
-  tag: latest@sha256:43ea0bd369a8a06fdbe5a0e3ace684892f231f22e5d69acaec3913304d8528e2
+  tag: latest@sha256:b4765f219dd161be7037a824c94c7250babb3b73e3aeb3a5ea5ea9df6c456275
 persistence: {}
 
 securityContext: