fix issue

tasks/main.yml

@@ -19,7 +19,7 @@
       system: no # not required. When creating an account C(state=present), setting this to C(yes) makes the user a system account. This setting cannot be changed on existing users.
       state: present # not required. choices: absent;present. Whether the account should exist or not, taking action if the state is different from what is stated.
       ssh_key_file: .ssh/id_rsa # not required. Optionally specify the SSH key filename. If this is a relative filename then it will be relative to the user's home directory.
-      uid: user.uid
+      uid: "{{ user.uid }}"
       shell: /bin/bash
 
 - name : set sudoers right