[wireguard] Use NDP and ARP proxy

plays/wireguard.yml

@@ -17,7 +17,7 @@
     debian_mirror: http://mirror.adm.crans.org/debian
     wireguard:
       sputnik: false
-      if: ens20
+      if: ens18
       private_key: "{{ vault_wireguard_boeing_private_key }}"
       peer_public_key: "{{ vault_wireguard_sputnik_public_key }}"
   roles: