fix(接口测试): 解决TCP协议导入其他设置丢失数据问题

--user=郭雨琦
https://www.tapd.cn/55049933/bugtrace/bugs/view/1155049933001017921

api-test/backend/src/main/java/io/metersphere/api/parse/api/JmeterDefinitionParser.java

@@ -581,6 +581,7 @@ public class JmeterDefinitionParser extends ApiImportAbstractParser<ApiDefinitio
         msTCPSampler.setServer(tcpSampler.getServer());
         msTCPSampler.setPort(tcpSampler.getPort() + "");
         msTCPSampler.setCtimeout(tcpSampler.getConnectTimeout() + "");
+        msTCPSampler.setClassname(tcpSampler.getProperty(TCPSampler.CLASSNAME).getStringValue());
         msTCPSampler.setReUseConnection(tcpSampler.getProperty(TCPSampler.RE_USE_CONNECTION).getBooleanValue());
         msTCPSampler.setNodelay(tcpSampler.getProperty(TCPSampler.NODELAY).getBooleanValue());
         msTCPSampler.setCloseConnection(tcpSampler.isCloseConnection());