provide allowed values

Author: hauner

openapi-processor-core/src/main/resources/mapping/v16/mapping.yaml.json

@@ -357,7 +357,7 @@
     },
     "ResultStyleMapping": {
       "description": "result style of a http response. 'success' uses success (ok) response type, 'all' uses Object/? type.",
-      "type": "string",
+      "enum": ["success", "all"],
       "default": "success",
       "examples": [
         "all",