fix: update Steps.java license

hugegraph-core/src/main/java/org/apache/hugegraph/traversal/algorithm/steps/Steps.java

@@ -1,20 +1,18 @@
 /*
+ * 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. The ASF
+ * licenses this file to You under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- *  * 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. The ASF
- *  * licenses this file to You under the Apache License, Version 2.0 (the
- *  * "License"); you may not use this file except in compliance with the License.
- *  * You may obtain a copy of the License at
- *  *
- *  *     http://www.apache.org/licenses/LICENSE-2.0
- *  *
- *  * Unless required by applicable law or agreed to in writing, software
- *  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- *  * License for the specific language governing permissions and limitations
- *  * under the License.
+ *     http://www.apache.org/licenses/LICENSE-2.0
  *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.hugegraph.traversal.algorithm.steps;