[lille][mail-global] Add IP for VM mail-global

data/grid5000/sites/lille/servers/mail-global.json

+{
+  "kind": "virtual",
+  "network_adapters": {
+    "default": {
+      "ip": "172.16.47.125"
+    }
+  },
+  "type": "server",
+  "uid": "mail-global"
+}
\ No newline at end of file

input/grid5000/sites/lille/servers/virtual.yaml

@@ -263,3 +263,8 @@ frontend-dev:
   network_adapters:
     default:
       ip: 172.16.47.156
+mail-global:
+  kind: virtual
+  network_adapters:
+    default: 
+      ip: 172.16.47.125