Add default value for "s.d.elasticsearch.client.reactive.endpoints"

See gh-28061

Author: polarbear567

spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -612,6 +612,12 @@
       "description": "Whether to enable Elasticsearch repositories.",
       "defaultValue": true
     },
+    {
+      "name": "spring.data.elasticsearch.client.reactive.endpoints",
+      "defaultValue": [
+        "http://localhost:9200"
+      ]
+    },
     {
       "name": "spring.data.jdbc.repositories.enabled",
       "type": "java.lang.Boolean",