chore(deps): update container image m1k1o/neko to xfce@e154770 by renovate (#16241)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| m1k1o/neko | digest | `df36f43` -> `e154770` |

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charts/incubator/neko/values.yaml

@@ -90,4 +90,4 @@ workload:
 xfceImage:
   pullPolicy: IfNotPresent
   repository: m1k1o/neko
-  tag: xfce@sha256:df36f438915ac4f1ffa18608e7d9169e330cea4f6c3f91d3d6257031c9cbc0eb
+  tag: xfce@sha256:e1547707e8424984a6e8429469ea230dab2b54d686922c7a9b3112534bc4b577