[openaddresses] add Volgograd oblast, Russia. Change language to Russian for the Kazakhstan data sets so no disambiguation is needed

resources/parser/data_sets/openaddresses.yaml

@@ -1144,6 +1144,7 @@ countries:
               language: en
 
     kz:
+        language: ru
         files:
             - filename: asa-statewide.csv
               add_osm_boundaries: true
@@ -1405,6 +1406,14 @@ countries:
             - filename: wielkopolskie.csv
             - filename: zachodniopomorskie.csv
 
+    ru:
+        subdirs:
+            vgg:
+                add:
+                    state: Волгоградская область
+                files:
+                    - filename: statewide.csv
+
     se:
         files:
             - filename: municipality_of_alingsas.csv