chore: Fix build ci

Signed-off-by: Javier Aliaga <javier@diagrid.io>

examples/src/main/java/io/dapr/examples/workflows/utils/RetryUtils.java

@@ -1,3 +1,16 @@
+/*
+ * Copyright 2025 The Dapr Authors
+ * 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.
+*/
+
 package io.dapr.examples.workflows.utils;
 
 import java.time.Duration;