nixos/auditd: break ordering cycle (#27577)

auditd creates an ordering cycle by adding wantedBy = [ "basic.target" ],
because of this the job job systemd-update-utmp.service/start is deleted.

Adding unitConfig.DefaultDependencies = false; to the auditd service unbreaks the cycle.

See also #11864

nixos/modules/security/auditd.nix

···
       unitConfig = {
         ConditionVirtualization = "!container";
         ConditionSecurity = [ "audit" ];
+        DefaultDependencies = false;
       };
 
       path = [ pkgs.audit ];