更新ftp配置

seatunnel-datasource/seatunnel-datasource-plugins/datasource-ftp/src/main/java/org/apache/seatunnel/datasource/plugin/ftp/FtpOptionRule.java

@@ -35,7 +35,7 @@ public class FtpOptionRule {
                     .noDefaultValue()
                     .withDescription("the default port to use for connections");
     public static final Option<String> USER =
-            Options.key("username")
+            Options.key("user")
                     .stringType()
                     .noDefaultValue()
                     .withDescription("the AMQP user name to use when connecting to the broker");