chore(helm): update image ghcr.io/linuxserver/znc digest to 9b81fbd (#42282)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[ghcr.io/linuxserver/znc](https://redirect.github.com/linuxserver/docker-znc/packages)
([source](https://redirect.github.com/linuxserver/docker-znc)) | digest
| `fcb37d8` -> `9b81fbd` |

---

> [!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:eyJjcmVhdGVkSW5WZXIiOiI0Mi4xNy4wIiwidXBkYXRlZEluVmVyIjoiNDIuMTcuMCIsInRhcmdldEJyYW5jaCI6Im1hc3RlciIsImxhYmVscyI6WyJhdXRvbWVyZ2UiLCJyZW5vdmF0ZS9jb250YWluZXIiLCJ0eXBlL2RpZ2VzdCJdfQ==-->

charts/stable/znc/Chart.yaml

@@ -36,5 +36,5 @@ sources:
   - https://ghcr.io/linuxserver/znc
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/znc
 type: application
-version: 12.13.1
+version: 12.13.2
 

charts/stable/znc/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/znc
   pullPolicy: IfNotPresent
-  tag: 1.10.1@sha256:fcb37d8789e3853c562b9d5a90b58ca72dfa22bb6957802046e1b7afada5a981
+  tag: 1.10.1@sha256:9b81fbd2c4a16f1fe686bf27bb7fce6bb53105a12f4e9d1073ff6c21083ca2fc
 service:
   main:
     ports: