chore(monica): update image monica digest to 216421c (#43424)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| monica | digest | `57a2fd3` -> `216421c` |

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charts/stable/monica/Chart.yaml

@@ -44,5 +44,5 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/monica
   - https://hub.docker.com/_/monica
 type: application
-version: 16.18.11
+version: 16.18.12
 

charts/stable/monica/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: monica
-  tag: 4.1.2@sha256:57a2fd322555c089f966ad728c9184b89be0b3597d90a5bd957accad98bd96f9
+  tag: 4.1.2@sha256:216421c3f5cf56db10de164e01df412f776ee3455e25be05367a5d32d266b189
   pullPolicy: IfNotPresent
 service:
   main: