Update order_with_builder_and_cancel

Author: Frixoe

src/bin/order_with_builder_and_cancel.rs

@@ -31,7 +31,7 @@ async fn main() {
         }),
     };
 
-    let fee = 1.0f64;
+    let fee = 1u64;
     let builder = "0x1ab189B7801140900C711E458212F9c76F8dAC79";
 
     let response = exchange_client