chore(helm): update image ghcr.io/linuxserver/calibre digest to 2abc022 (#35591)

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 | `06cf65a` -> `2abc022` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS4yMzguMCIsInVwZGF0ZWRJblZlciI6IjM5LjIzOC4wIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSIsInJlbm92YXRlL2NvbnRhaW5lciIsInR5cGUvZGlnZXN0Il19-->

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: 17.4.1
+version: 17.4.2
 

charts/stable/calibre/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: ghcr.io/linuxserver/calibre
-  tag: 8.4.0@sha256:06cf65afaf9ba85ad88b616f9d069c7cbe3130edf7adefa0243d6c779dd728ca
+  tag: 8.4.0@sha256:2abc022999ff914dd3e23dd7edb70c104918bb324c0b03175ae990cedc5a1d11
   pullPolicy: IfNotPresent
 securityContext:
   container: