chore(deps): update container image ghcr.io/techno-tim/littlelink-server to latest@42917c3 by renovate (#26257)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/techno-tim/littlelink-server | digest | `5b411f9` -> `42917c3`
|

---

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

---

### 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:eyJjcmVhdGVkSW5WZXIiOiIzOC43Ny4wIiwidXBkYXRlZEluVmVyIjoiMzguNzcuMCIsInRhcmdldEJyYW5jaCI6Im1hc3RlciIsImxhYmVscyI6WyJhdXRvbWVyZ2UiLCJ1cGRhdGUvZG9ja2VyL2dlbmVyYWwvbm9uLW1ham9yIl19-->

charts/stable/littlelink/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/techno-tim/littlelink-server
   - https://github.com/truecharts/charts/tree/master/charts/stable/littlelink
 type: application
-version: 15.1.16
+version: 15.1.17

charts/stable/littlelink/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/techno-tim/littlelink-server
   pullPolicy: IfNotPresent
-  tag: latest@sha256:5b411f96dc72e08cd3efb89e76d0b49ef5627fffc8bce532068203f658381210
+  tag: latest@sha256:42917c3ef616a679e637faf78b69231f815d57b6ab1fada06f2fb09f67c504e1
 service:
   main:
     ports: