chore(deps): update container image lscr.io/linuxserver/rdesktop to arch-xfce@28d7d76 (#15176)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| lscr.io/linuxserver/rdesktop | digest | `8872896` -> `28d7d76` |

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charts/stable/rdesktop/values.yaml

@@ -12,7 +12,7 @@ fedoraXFCEImage:
   pullPolicy: Always
 archXFCEImage:
   repository: lscr.io/linuxserver/rdesktop
-  tag: arch-xfce@sha256:8872896c7e794288ef318a3a41d96d7de0039c8dfa8ebd9ec677ca6f4e51cea1
+  tag: arch-xfce@sha256:28d7d76473dffb7e404307846479e1fe72d926b9595bd23bd3bcfb2d5d4023fa
   pullPolicy: Always
 alpineKDEImage:
   repository: lscr.io/linuxserver/rdesktop