Correct fsshift name

Author: Prince Rachit Sinha

.werft/values.devK3sWs.yaml

@@ -140,9 +140,7 @@ components:
     - mountPath: /mnt/sync-tmp
       name: gcloud-tmp
     userNamespaces:
-      fsShift: fuse-overlayfs
-      shiftfsModuleLoader:
-        enabled: false
+      fsShift: fuse
       seccompProfileInstaller:
         enabled: true
     # in preview envs, we never want DaemonSets not to be scheduled (because they don't trigger scaleup)