chore(helm): update image ghcr.io/suwayomi/tachidesk digest to 23212a9 (#30832)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/suwayomi/tachidesk | digest | `6923683` -> `23212a9` |

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charts/stable/tachidesk-docker/Chart.yaml

@@ -34,4 +34,4 @@ sources:
   - https://github.com/suwayomi/docker-tachidesk
   - https://github.com/truecharts/charts/tree/master/charts/stable/tachidesk-docker
 type: application
-version: 8.4.1
+version: 8.4.2

charts/stable/tachidesk-docker/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: ghcr.io/suwayomi/tachidesk
-  tag: preview@sha256:6923683a7025935924daf212c04bff265ec1e635e55e5a3bcbdd7275e4e7618d
+  tag: preview@sha256:23212a963dc9fb6a2af577d6d43946f1cef31ccf26e344f62d5e65bbc0c2ccad
 
 securityContext:
   container: