Change: make region optional for gluetun api response (#4512)

src/widgets/gluetun/widget.js

@@ -7,7 +7,7 @@ const widget = {
   mappings: {
     ip: {
       endpoint: "publicip/ip",
-      validate: ["public_ip", "region", "country"],
+      validate: ["public_ip", "country"],
     },
   },
 };