fix: gas预估修改不成功

src/main/java/com/ichaoj/ams/request/task/CreateAirdropTask.java

@@ -30,6 +30,7 @@ public class CreateAirdropTask {
      * 计划任务执行次数
      */
     private Integer planTimes;
+    private String estimatedGas;
 
     /**
      * 合约地址