chore(helm): update image ghcr.io/linuxserver/calibre digest to 8c69e63 (#38800)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[ghcr.io/linuxserver/calibre](https://redirect.github.com/linuxserver/docker-calibre/packages)
([source](https://redirect.github.com/linuxserver/docker-calibre)) |
digest | `2b356b8` -> `8c69e63` |

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charts/stable/calibre/Chart.yaml

@@ -35,5 +35,5 @@ sources:
   - https://github.com/kovidgoyal/calibre/
   - https://github.com/truecharts/charts/tree/master/charts/stable/calibre
 type: application
-version: 18.6.0
+version: 18.6.1
 

charts/stable/calibre/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: ghcr.io/linuxserver/calibre
-  tag: 8.9.0@sha256:2b356b856f812dd58d717a2acd7018850a7975e56037b86db1e0716b6bd59ab3
+  tag: 8.9.0@sha256:8c69e63e5c62fe3360042c663bd77c93df594f4801438882604511908949b7fe
   pullPolicy: IfNotPresent
 securityContext:
   container: