Apply two improvements from Kibana Console (#2907)

Author: pquentin

output/openapi/elasticsearch-openapi.json

@@ -36,7 +36,7 @@ export interface Request extends RequestBase {
      * Format for the response.
      * @doc_id sql-rest-format
      */
-    format?: string
+    format?: SqlFormat
   }
   body: {
     /**
@@ -120,3 +120,13 @@ export interface Request extends RequestBase {
     index_using_frozen?: boolean
   }
 }
+
+export enum SqlFormat {
+  csv,
+  json,
+  tsv,
+  txt,
+  yaml,
+  cbor,
+  smile
+}

output/openapi/elasticsearch-serverless-openapi.json

@@ -31,7 +31,7 @@ export interface Request extends RequestBase {
     /**
      * A comma-separated list of the information categories to include in the response. For example, `build,license,features`.
      */
-    categories?: string[]
+    categories?: XPackCategory[]
     accept_enterprise?: boolean
     /**
      * Defines whether additional human-readable information is included in the response. In particular, it adds descriptions and a tag line.
@@ -40,3 +40,9 @@ export interface Request extends RequestBase {
     human?: boolean
   }
 }
+
+export enum XPackCategory {
+  build,
+  features,
+  license
+}