fix: update region name and clear code

- Update region name with data from the input
- Set code to nil to reset any previous values
- Preserve other attributes like translations, flag, and wiki_data_id

This change ensures that region data is updated correctly with the
provided input while eliminating any previous code settings that may
no longer be relevant.

lib/tasks/sync_geo_data.rake

@@ -28,6 +28,8 @@ namespace :geo do
       count += 1
 
       region.update(
+        name: data["name"],
+        code: nil,
         translations: data["translations"],
         flag: data["flag"] || true,
         wiki_data_id: data["wikiDataId"]