Update specs for ES|QL include_execution_metadata (#5655)

Author: luigidellaquila

output/openapi/elasticsearch-openapi.json

@@ -117,9 +117,16 @@ export interface Request extends RequestBase {
      * object with information about the clusters that participated in the search along with info such as shards
      * count.
      * @server_default false
-     * @aliases include_execution_metadata
      */
     include_ccs_metadata?: boolean
+    /**
+     * When set to `true`, the response will include an extra `_clusters`
+     * object with information about the clusters that participated in the search along with info such as shards
+     * count.
+     * This is similar to `include_ccs_metadata`, but it also returns metadata when the query is not CCS/CPS
+     * @server_default false
+     */
+    include_execution_metadata?: boolean
     /**
      * The period to wait for the request to finish.
      * By default, the request waits for 1 second for the query results.

output/openapi/elasticsearch-serverless-openapi.json

@@ -110,8 +110,15 @@ export interface Request extends RequestBase {
      * object with information about the clusters that participated in the search along with info such as shards
      * count.
      * @server_default false
-     * @aliases include_execution_metadata
      */
     include_ccs_metadata?: boolean
+    /**
+     * When set to `true`, the response will include an extra `_clusters`
+     * object with information about the clusters that participated in the search along with info such as shards
+     * count.
+     * This is similar to `include_ccs_metadata`, but it also returns metadata when the query is not CCS/CPS
+     * @server_default false
+     */
+    include_execution_metadata?: boolean
   }
 }