refactor(configuration): rename _uid to configuration_uid for role prefix convention

roles/configuration/tasks/users.yml

@@ -49,12 +49,12 @@
 
 - name: Add SSH public keys to authorized_keys
   vars:
-    _uid: "{{ 1000 + (system_cfg.users | map(attribute='name') | list).index(item.0.name) }}"
+    configuration_uid: "{{ 1000 + (system_cfg.users | map(attribute='name') | list).index(item.0.name) }}"
   ansible.builtin.lineinfile:
     path: "/mnt/home/{{ item.0.name }}/.ssh/authorized_keys"
     line: "{{ item.1 }}"
-    owner: "{{ _uid }}"
-    group: "{{ _uid }}"
+    owner: "{{ configuration_uid }}"
+    group: "{{ configuration_uid }}"
     mode: "0600"
     create: true
   loop: "{{ system_cfg.users | subelements('keys', skip_missing=True) }}"