Update rewrite-json/src/main/java/org/openrewrite/json/AddKeyValue.java

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

rewrite-json/src/main/java/org/openrewrite/json/AddKeyValue.java

@@ -1,4 +1,18 @@
-package org.openrewrite.json;
+/*
+ * Copyright 2024 the original author or authors.
+ * <p>
+ * 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
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.
+ */
 
 import lombok.EqualsAndHashCode;
 import lombok.Value;