chore(helm): update image ghcr.io/linuxserver/speedtest-tracker digest to e447193 (#28745)

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 | `9e6aa44` -> `e447193` |

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charts/stable/speedtest-tracker/Chart.yaml

@@ -41,4 +41,4 @@ sources:
   - https://github.com/linuxserver/docker-speedtest-tracker
   - https://github.com/truecharts/charts/tree/master/charts/stable/speedtest-tracker
 type: application
-version: 5.6.7
+version: 5.6.8

charts/stable/speedtest-tracker/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/speedtest-tracker
   pullPolicy: IfNotPresent
-  tag: 0.21.4@sha256:9e6aa4424fd13d796a6b4e2563b833da6cc4ea5a03a28926e923f37e230640b8
+  tag: 0.21.4@sha256:e44719300aee8b46bf7b71d4bdb55187dd22a66e380873cc82b17a82ef1f95d7
 service:
   main:
     ports: