chore(deps): update container image ghcr.io/linuxserver/duckdns to latest@d8fa5b6 by renovate (#26446)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/linuxserver/duckdns | digest | `3788a5c` -> `d8fa5b6` |

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charts/stable/duckdns/Chart.yaml

@@ -31,4 +31,4 @@ sources:
   - https://ghcr.io/linuxserver/duckdns
   - https://github.com/truecharts/charts/tree/master/charts/stable/duckdns
 type: application
-version: 11.1.14
+version: 11.1.15

charts/stable/duckdns/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/duckdns
   pullPolicy: IfNotPresent
-  tag: latest@sha256:3788a5cc80302610f23c9ac72904c1143db119ccc3c97c48339989d50e5272aa
+  tag: latest@sha256:d8fa5b623e97b447096fc132a451aee02b3dfcc79c948f6901cc6870a1858ff1
 securityContext:
   container:
     runAsNonRoot: false