chore(deps): update container image ghcr.io/techno-tim/littlelink-server to latest@25d5d9c by renovate (#23267)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/techno-tim/littlelink-server | digest | `dfca3b9` -> `25d5d9c`
|

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charts/stable/littlelink/Chart.yaml

@@ -34,4 +34,4 @@ sources:
   - https://github.com/techno-tim/littlelink-server
   - https://github.com/truecharts/charts/tree/master/charts/stable/littlelink
 type: application
-version: 15.0.3
+version: 15.0.4

charts/stable/littlelink/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/techno-tim/littlelink-server
   pullPolicy: IfNotPresent
-  tag: latest@sha256:dfca3b9ba0c1acf0ba203b97a364f1637eb47d2d39d82e3c13f51a9e6bf333b8
+  tag: latest@sha256:25d5d9cabee1c2169ff6f9c91c3bd5246d6ba6d80c423c4702f628a9cccc6e25
 service:
   main:
     ports: