chore(helm): update image ghcr.io/kiwigrid/k8s-sidecar digest to 5304aa2 (#41868)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[ghcr.io/kiwigrid/k8s-sidecar](https://redirect.github.com/kiwigrid/k8s-sidecar)
| digest | `8b87591` -> `5304aa2` |

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charts/stable/grafana/Chart.yaml

@@ -42,5 +42,5 @@ sources:
   - https://grafana.com/
   - https://hub.docker.com/r/grafana/grafana
 type: application
-version: 20.2.0
+version: 20.2.1
 

charts/stable/grafana/values.yaml

@@ -5,7 +5,7 @@ image:
 
 sidecarImage:
   repository: ghcr.io/kiwigrid/k8s-sidecar
-  tag: 2.1.2@sha256:8b875915be0869624cf5dfd48a1dfbfb627e778793cc1612d00fb281a8805c63
+  tag: 2.1.2@sha256:5304aa2b45f80a19f84a5e9dfb139c9caeaeecf1f9e507d0bdb9bc1cdb87a58a
 
 securityContext:
   container: