Add missing index parameter to _cat/recovery

Author: pquentin

specification/cat/recovery/CatRecoveryRequest.ts

@@ -68,6 +68,10 @@ export interface Request extends CatRequestBase {
      * @server_default false
      */
     detailed?: boolean
+    /**
+     * Comma-separated list or wildcard expression of index names to limit the returned information
+     */
+    index?: Indices
     /**
      * List of columns to appear in the response. Supports simple wildcards.
      */