style: don't log passwords (as recommended by linter)

tasks/create_users_groups.yml

@@ -40,6 +40,7 @@
   when:
     - item.value.state == "present"
     - item.key != ansible_user        # we cannot modify the user that is used to make the connection, because the Python process uses it
+  no_log: true
 
 - name: lock HUMAN users
   ansible.builtin.user:
@@ -67,6 +68,7 @@
   when:
     - item.value.state == "present"
     - item.key != ansible_user        # we cannot modify the user that is used to make the connection, because the Python process uses it
+  no_log: true
 
 - name: lock ROBOT users
   ansible.builtin.user: