Deprecate amenity=dancing_school

Also deprecated in the wiki and a replacement is available, see https://wiki.openstreetmap.org/wiki/Tag%3Aamenity%3Ddancing_school

data/deprecated.json

@@ -28,6 +28,10 @@
       "old": {"amenity": "community_center"},
       "replace": {"amenity": "community_centre"}
     },
+    {
+      "old": {"amenity": "dancing_school"},
+      "replace": {"leisure": "dance", "dance:teaching": "yes" }
+    },
     {
       "old": {"amenity": "dog_bin"},
       "replace": {"amenity": "waste_basket", "waste": "dog_excrement"}