add license

zuul-integration-test/src/test/resources/log4j2-test.xml

@@ -1,3 +1,19 @@
+<!--
+ Copyright 2023 Netflix, Inc.
+
+  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
+
+          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.
+
+-->
 <?xml version="1.0" encoding="UTF-8"?>
 <Configuration status="DEBUG">
     <Appenders>