roles/users: add blahaj account in vars

ansible/roles/users/vars/debian.yml

@@ -6,3 +6,4 @@ user_details:
      - { name: jerome, uid: 2002 }
      - { name: sofian, uid: 2003 }
      - { name: epickiwi, uid: 2005 }
+     - { name: blahaj, uid: 10000 }