AwaitsFix PUT mapping with _doc on an index that has types (#38204)

Tracked at #38202

Author: dnhatn

rest-api-spec/src/main/resources/rest-api-spec/test/indices.put_mapping/20_mix_typeless_typeful.yml

@@ -55,8 +55,8 @@
 "PUT mapping with _doc on an index that has types":
 
  - skip:
-      version: " - 6.6.99"
-      reason: include_type_name is only supported as of 6.7
+      version: "all"
+      reason: include_type_name is only supported as of 6.7 # AwaitsFix: https://github.com/elastic/elasticsearch/issues/38202
 
 
  - do: