Fix Spring Data Elasticsearch deprecations

See gh-26078

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/data/elasticsearch/city/City.java

 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,8 +20,10 @@ import java.io.Serializable;
 
 import org.springframework.data.annotation.Id;
 import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Setting;
 
-@Document(indexName = "city", shards = 1, replicas = 0, refreshInterval = "-1")
+@Document(indexName = "city")
+@Setting(shards = 1, replicas = 0, refreshInterval = "-1")
 public class City implements Serializable {
 
 	private static final long serialVersionUID = 1L;

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-data-elasticsearch/src/main/java/smoketest/data/elasticsearch/Customer.java

 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,8 +18,10 @@ package smoketest.data.elasticsearch;
 
 import org.springframework.data.annotation.Id;
 import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Setting;
 
-@Document(indexName = "customer", shards = 1, replicas = 0, refreshInterval = "-1")
+@Document(indexName = "customer")
+@Setting(shards = 1, replicas = 0, refreshInterval = "-1")
 public class Customer {
 
 	@Id