chore(helm): update image monica digest to c9bb49f (#38677)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| monica | digest | `570ce89` -> `c9bb49f` |

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charts/stable/monica/Chart.yaml

@@ -42,5 +42,5 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/monica
   - https://hub.docker.com/_/monica
 type: application
-version: 15.6.5
+version: 15.6.6
 

charts/stable/monica/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: monica
-  tag: 4.1.2@sha256:570ce89ee4dfa8f7ab80e915b4f539d05572cfd18ccc2da55b63da4a2651aae6
+  tag: 4.1.2@sha256:c9bb49f02ba0f0b21e72d6feda7a3ebe66720928da0aca3bc85cb8f4365ca130
   pullPolicy: IfNotPresent
 service:
   main: