js-executor: fixed license header

 /*
- * ThingsBoard, Inc. ("COMPANY") CONFIDENTIAL
+ * Copyright © 2016-2021 The Thingsboard Authors
  *
- * Copyright © 2016-2021 ThingsBoard, Inc. All Rights Reserved.
+ * Licensed 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
  *
- * NOTICE: All information contained herein is, and remains
- * the property of ThingsBoard, Inc. and its suppliers,
- * if any.  The intellectual and technical concepts contained
- * herein are proprietary to ThingsBoard, Inc.
- * and its suppliers and may be covered by U.S. and Foreign Patents,
- * patents in process, and are protected by trade secret or copyright law.
+ *     http://www.apache.org/licenses/LICENSE-2.0
  *
- * Dissemination of this information or reproduction of this material is strictly forbidden
- * unless prior written permission is obtained from COMPANY.
- *
- * Access to the source code contained herein is hereby forbidden to anyone except current COMPANY employees,
- * managers or contractors who have executed Confidentiality and Non-disclosure agreements
- * explicitly covering such access.
- *
- * The copyright notice above does not evidence any actual or intended publication
- * or disclosure  of  this source code, which includes
- * information that is confidential and/or proprietary, and is a trade secret, of  COMPANY.
- * ANY REPRODUCTION, MODIFICATION, DISTRIBUTION, PUBLIC  PERFORMANCE,
- * OR PUBLIC DISPLAY OF OR THROUGH USE  OF THIS  SOURCE CODE  WITHOUT
- * THE EXPRESS WRITTEN CONSENT OF COMPANY IS STRICTLY PROHIBITED,
- * AND IN VIOLATION OF APPLICABLE LAWS AND INTERNATIONAL TREATIES.
- * THE RECEIPT OR POSSESSION OF THIS SOURCE CODE AND/OR RELATED INFORMATION
- * DOES NOT CONVEY OR IMPLY ANY RIGHTS TO REPRODUCE, DISCLOSE OR DISTRIBUTE ITS CONTENTS,
- * OR TO MANUFACTURE, USE, OR SELL ANYTHING THAT IT  MAY DESCRIBE, IN WHOLE OR IN PART.
+ * 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.
  */
-
 const config = require('config'),
       logger = require('../config/logger')._logger('httpServer'),
       express = require('express');