fix comment in pom.xml

Author: Michael Nedzelsky

pom.xml

@@ -1,8 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
   ~ Copyright 2024 Diffblue Limited. All Rights Reserved.
-  ~ Unpublished proprietary source code.
-  ~ Use is governed by https://docs.diffblue.com/licenses/eula
+  ~ Licensed under the Apache License, Version 2.0 (the "License").
+  ~ You may not use this file except in compliance with the License.
+  ~ A copy of the License is located at
+  ~
+  ~ https://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ or in the "license" file accompanying this file. This file 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.
   -->
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"