[Typo] standardized license header. (#14548)

Co-authored-by: wentz <wentz@getui.com>
Co-authored-by: Eric Gao <ericgao.apache@gmail.com>

dolphinscheduler-remote/src/main/java/org/apache/dolphinscheduler/rpc/common/ResponseEventType.java

@@ -1,4 +1,4 @@
-package org.apache.dolphinscheduler.rpc.common;/*
+/*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
@@ -15,6 +15,8 @@ package org.apache.dolphinscheduler.rpc.common;/*
  * limitations under the License.
  */
 
+package org.apache.dolphinscheduler.rpc.common;
+
 public enum ResponseEventType {
 
     ACK((byte) 1, "ack"),

dolphinscheduler-remote/src/main/java/org/apache/dolphinscheduler/rpc/serializer/ProtoStuffSerializer.java

@@ -1,4 +1,4 @@
-package org.apache.dolphinscheduler.rpc.serializer;/*
+/*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
@@ -15,6 +15,8 @@ package org.apache.dolphinscheduler.rpc.serializer;/*
  * limitations under the License.
  */
 
+package org.apache.dolphinscheduler.rpc.serializer;
+
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 

dolphinscheduler-remote/src/main/java/org/apache/dolphinscheduler/rpc/serializer/RpcSerializer.java

@@ -1,4 +1,4 @@
-package org.apache.dolphinscheduler.rpc.serializer;/*
+/*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
@@ -15,6 +15,8 @@ package org.apache.dolphinscheduler.rpc.serializer;/*
  * limitations under the License.
  */
 
+package org.apache.dolphinscheduler.rpc.serializer;
+
 import java.util.HashMap;
 
 public enum RpcSerializer {

dolphinscheduler-task-plugin/dolphinscheduler-task-python/src/main/java/org/apache/dolphinscheduler/plugin/task/python/PythonTaskChannelFactory.java

@@ -1,4 +1,4 @@
-package org.apache.dolphinscheduler.plugin.task.python;/*
+/*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
@@ -15,6 +15,8 @@ package org.apache.dolphinscheduler.plugin.task.python;/*
  * limitations under the License.
  */
 
+package org.apache.dolphinscheduler.plugin.task.python;
+
 import org.apache.dolphinscheduler.plugin.task.api.TaskChannel;
 import org.apache.dolphinscheduler.plugin.task.api.TaskChannelFactory;
 import org.apache.dolphinscheduler.spi.params.base.PluginParams;