fix: stake migration refund package is not correctly handled (#151)

pom.xml

@@ -5,7 +5,7 @@
 
     <groupId>com.binance.dex.api</groupId>
     <artifactId>binance-dex-api-client</artifactId>
-    <version>1.1.6</version>
+    <version>1.1.8</version>
 
 	<repositories>
 		<repository>

src/main/java/com/binance/dex/api/client/crosschain/ContentEnum.java

@@ -26,6 +26,9 @@ public enum ContentEnum {
     CrossStakeSynPack(16, 0, CrossStakeSyn.class),
     CrossStakeRefundPack(16, 1, CrossStakeRefund.class),
     CrossStakeFailAckPack(16, 2, CrossStakeFailAck.class),
+    StakeMigrationSynPack(17, 0, StakeMigrationRefund.class),
+    StakeMigrationAckPack(17, 1, StakeMigrationRefund.class),
+    StakeMigrationFailAckPack(17, 2, StakeMigrationRefund.class),
     ;
 
     private Integer channelId;

src/main/java/com/binance/dex/api/client/crosschain/content/StakeMigrationRefund.java

@@ -0,0 +1,23 @@
+package com.binance.dex.api.client.crosschain.content;
+
+import com.binance.dex.api.client.crosschain.*;
+import com.binance.dex.api.client.encoding.message.common.Bech32AddressValue;
+import com.binance.dex.api.client.encoding.message.common.EthAddressValue;
+import lombok.Getter;
+import lombok.Setter;
+
+
+@Getter
+@Setter
+public class StakeMigrationRefund extends Content {
+
+    private EthAddressValue operatorAddress;
+    private EthAddressValue delegatorAddress;
+    private Bech32AddressValue refundAddress;
+    private UnsignedNumber amount;
+
+    @Override
+    protected void setHrp(String hrp) {
+        this.refundAddress.setHrp(hrp);
+    }
+}