change update module to use simple systemd service

bin/auto-update-nixos

@@ -84,6 +84,9 @@ if [ -z "${flakeDir}" ]; then
   exit 1
 fi
 
+# wait for wifi networks to come online.
+sleep 10
+
 cd $flakeDir
 
 current_branch=$(git branch --show-current)

modules/nixos/nixosAutoUpgrade.nix

@@ -70,7 +70,7 @@ in
     systemd = {
       services."nixos-upgrade" = {
         serviceConfig = {
-          Type = "oneshot";
+          Type = "simple";
           User = "root";
         };
         path = ["/run/current-system/sw"];