after reverting bad commits, change service to shell (service only supports...

after reverting bad commits, change service to shell (service only supports real system services like sshd)

playbook/roles/slapos-proxy/tasks/main.yml

@@ -19,5 +19,5 @@
     wait_for: host=127.0.0.1 port=8080 delay=10
 
   - name: Run slapos format for initial bootstrap
-    service: "slapos node format --now --alter_user=True"
-    when: slapos_cfg.stat.exists == False
+    shell: "slapos node format --now --alter_user=True"
+    when: slapos_cfg.stat.exists == False
\ No newline at end of file