fix(types): Add ledger_current_index to VaultInfoResponse

Author: mpint

packages/xrpl/src/models/methods/vaultInfo.ts

@@ -199,6 +199,12 @@ export interface VaultInfoResponse extends BaseResponse {
      */
     ledger_index?: number
 
+    /**
+     * The ledger index of the current in-progress ledger, which was used when
+     * retrieving this information. May be omitted.
+     */
+    ledger_current_index?: number
+
     /**
      * If included and set to true, the information in this response comes from
      * a validated ledger version. Otherwise, the information is subject to