chore(speedtest-tracker): update image ghcr.io/linuxserver/speedtest-tracker digest to c3750c4 (#48827)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[ghcr.io/linuxserver/speedtest-tracker](https://redirect.github.com/linuxserver/docker-speedtest-tracker/packages)
([source](https://redirect.github.com/linuxserver/docker-speedtest-tracker))
| digest | `79c0063` → `c3750c4` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/18710) for more information.

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

---

### Configuration

📅 **Schedule**: (UTC)

- 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:eyJjcmVhdGVkSW5WZXIiOiI0My4xMzAuMSIsInVwZGF0ZWRJblZlciI6IjQzLjEzMC4xIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImFwcC9zcGVlZHRlc3QtdHJhY2tlciIsImF1dG9tZXJnZSIsInJlbm92YXRlL2NvbnRhaW5lciIsInR5cGUvZGlnZXN0Il19-->

charts/stable/speedtest-tracker/Chart.yaml

@@ -44,5 +44,5 @@ sources:
   - https://github.com/linuxserver/docker-speedtest-tracker
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/speedtest-tracker
 type: application
-version: 11.6.6
+version: 11.6.7
 

charts/stable/speedtest-tracker/values.yaml

@@ -2,7 +2,7 @@
 image:
   repository: ghcr.io/linuxserver/speedtest-tracker
   pullPolicy: IfNotPresent
-  tag: 1.14.3@sha256:79c00631575dec6d91c10ed904c211224f00813013a305c2284324e195a538bb
+  tag: 1.14.3@sha256:c3750c40948a9360000ce62d694da92e85584b4ab6d3d9a9d1432d76fa5e0726
 service:
   main:
     ports: