chore(common): update image oci.trueforge.org/containerforge/ubuntu digest to e566b6c (#49621)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[oci.trueforge.org/containerforge/ubuntu](https://ghcr.io/trueforge-org/ubuntu)
([source](https://hub.docker.com/_/ubuntu)) | digest | `5cb91be` →
`e566b6c` |

---

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charts/library/common/values.yaml

@@ -593,7 +593,7 @@ alpineImage:
 
 ubuntuImage:
   repository: oci.trueforge.org/containerforge/ubuntu
-  tag: "26.4@sha256:5cb91be3e738ebbd91b616dc8ec0dd21d25980038f39d6b941f30a0b106d1ecf"
+  tag: "26.4@sha256:e566b6c11ab30372ddb0ee460a2f65699fd50ad2eb148ddac0d7800074159f19"
   pullPolicy: IfNotPresent
 
 scratchImage:
@@ -608,7 +608,7 @@ kubectlImage:
 
 wgetImage:
   repository: oci.trueforge.org/containerforge/ubuntu
-  tag: "26.4@sha256:5cb91be3e738ebbd91b616dc8ec0dd21d25980038f39d6b941f30a0b106d1ecf"
+  tag: "26.4@sha256:e566b6c11ab30372ddb0ee460a2f65699fd50ad2eb148ddac0d7800074159f19"
   pullPolicy: IfNotPresent
 
 yqImage: