Bump elasticsearch-java to version 9.x (#3901)

Signed-off-by: Ramanathan <ramanathanbscmca@gmail.com>
Co-authored-by: Volkan Yazıcı <volkan@yazi.ci>

Author: ramanathan1504

log4j-layout-template-json-test/pom.xml

@@ -48,7 +48,7 @@
          2. The Docker image version of the ELK-stack
 
          As of 2024-09-16, these all (Maven artifacts and Elastic products) get released with the same version. -->
-    <elastic.version>8.17.3</elastic.version>
+    <elastic.version>9.1.3</elastic.version>
 
   </properties>
 
@@ -96,6 +96,13 @@
       <scope>test</scope>
     </dependency>
 
+    <dependency>
+      <groupId>org.elasticsearch.client</groupId>
+      <artifactId>elasticsearch-rest-client</artifactId>
+      <version>${elastic.version}</version>
+      <scope>test</scope>
+    </dependency>
+
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>