chore(helm): update image docker.io/petersem/posterr digest to 8a3f009 (#28669)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/petersem/posterr | digest | `8f09094` -> `8a3f009` |

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charts/stable/posterr/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/posterr
   - https://hub.docker.com/r/petersem/posterr
 type: application
-version: 10.2.1
+version: 10.2.2

charts/stable/posterr/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: docker.io/petersem/posterr
-  tag: latest@sha256:8f090949c8551a3bef044a60605db180687be128901ae167d91dafdcc7f21447
+  tag: latest@sha256:8a3f009f5371eac3faffceb25ec4b301f590cc3c2cf5e60d943ad37963ae301b
 service:
   main:
     ports: