Add undocumented profile parameter

Author: pquentin

specification/esql/query/QueryRequest.ts

@@ -63,6 +63,7 @@ export interface Request extends RequestBase {
      * @doc_id esql-query-params
      */
     params?: Array<ScalarValue>
+    profile?: boolean
     /**
      * The ES|QL query API accepts an ES|QL query string in the query parameter, runs it, and returns the results.
      */