chore(helm): update image ghcr.io/linuxserver/znc digest to 4449809 (#35664)

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
| `6276e50` -> `4449809` |

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

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charts/stable/znc/Chart.yaml

@@ -34,5 +34,5 @@ sources:
   - https://ghcr.io/linuxserver/znc
   - https://github.com/truecharts/charts/tree/master/charts/stable/znc
 type: application
-version: 11.5.6
+version: 11.5.7
 

charts/stable/znc/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/znc
   pullPolicy: IfNotPresent
-  tag: 1.9.1@sha256:6276e50d2ff682fd01f9397a1acdb9a26db7e6176fa63bfedb8b17b26c6d2555
+  tag: 1.9.1@sha256:4449809265b2055ad88cc41ccf17e18ffc8ee6ea504d0505cbbe150d64855da0
 service:
   main:
     ports: