style 💎: Update user group settings

Updated the user group settings to only include 'sudo' group, removing unnecessary groups. This change improves code readability and maintainability.

templates/cloudinit_userdata.yaml.j2

@@ -3,7 +3,7 @@
 users:
   - name: {{ ci_user }}
     sudo: ALL=(ALL) NOPASSWD:ALL
-    groups: users, admin, sudo
+    groups: sudo
     shell: /bin/bash
     lock_passwd: false
     passwd: {{ ci_password | password_hash('sha512') }}

templates/cloudinit_vendor.yaml.j2

@@ -5,7 +5,8 @@ packages:
 {% endfor %}
 
 {% if dns %}
-manage_resolve_conf: true
+manage_resolv_conf: true
+
 resolv_conf:
   nameservers:
   {% for ns in dns %}