Use (group) syntax in access.conf (#804)

From access.conf(5):

    The second field, the users/group field, should be a list of one or
    more login names, group names, or ALL (which always matches). To
    differentiate user entries from group entries, group entries should
    be written with brackets, e.g. (group).

Author: priteau

ansible/roles/compute_init/files/compute-init.yml

@@ -346,7 +346,7 @@
       ansible.builtin.blockinfile:
         path: /etc/security/access.conf
         block: |
-          +:adm:ALL
+          +:(adm):ALL
           -:ALL:ALL
 
     - name: Ensure slurmd service state

ansible/slurm.yml

@@ -50,7 +50,7 @@
       ansible.builtin.blockinfile:
         path: /etc/security/access.conf
         block: |
-          +:adm:ALL
+          +:(adm):ALL
           -:ALL:ALL
  # vagrant uses (deprecated) ansible_ssh_user