chore(helm): update image lscr.io/linuxserver/calibre-web digest to a9920b3 (#31945)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[lscr.io/linuxserver/calibre-web](https://redirect.github.com/linuxserver/docker-calibre-web/packages)
([source](https://redirect.github.com/linuxserver/docker-calibre-web)) |
digest | `e45459f` -> `a9920b3` |

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charts/stable/calibre-web/Chart.yaml

@@ -34,4 +34,4 @@ sources:
   - https://github.com/janeczku/calibre-web
   - https://github.com/truecharts/charts/tree/master/charts/stable/calibre-web
 type: application
-version: 20.5.3
+version: 20.5.4

charts/stable/calibre-web/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: lscr.io/linuxserver/calibre-web
   pullPolicy: IfNotPresent
-  tag: version-0.6.24@sha256:e45459ff1c9acae8acfb50a130a12ffcbab96d8bfceca28780a12c53a410c332
+  tag: version-0.6.24@sha256:a9920b3c5125b56f0b31a454075bbb06a9d211f2eee1fe419fd73b1f2a0201a5
 securityContext:
   container:
     readOnlyRootFilesystem: false