switch gateway to use wireguard

plays/nodes/gateway.yml

@@ -1,5 +1,5 @@
 ---
-- hosts: gateway
+- hosts: 10.0.0.2
   gather_facts: true
   become: true
   vars_files:
@@ -7,7 +7,7 @@
   roles:
     - role: name-resolution
       tags: dhcp
-    - role: vpn-gateway
+    - role: wg-gateway
       tags: vpn
     - role: statusservices
       tags: statusservices