Bump elasticsearch-java to version 9.x (#3951)

Author: ramanathan1504

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

@@ -49,7 +49,7 @@
          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>9.1.5</elastic.version>
 
   </properties>
 
@@ -97,6 +97,13 @@
       <scope>test</scope>
     </dependency>
 
+    <dependency>
+      <groupId>org.elasticsearch.client</groupId>
+      <artifactId>elasticsearch-rest-client</artifactId>
+      <version>${elastic.version}</version>
+      <scope>test</scope>
+    </dependency>
+
     <!-- Needed by elasticsearch-java for testing -->
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
@@ -105,6 +112,13 @@
       <scope>test</scope>
     </dependency>
 
+    <dependency>
+      <groupId>com.fasterxml.jackson.dataformat</groupId>
+      <artifactId>jackson-dataformat-yaml</artifactId>
+      <version>${jackson2.test.version}</version>
+      <scope>test</scope>
+    </dependency>
+
     <dependency>
       <groupId>com.google.code.java-allocation-instrumenter</groupId>
       <artifactId>java-allocation-instrumenter</artifactId>
@@ -123,6 +137,13 @@
       <scope>test</scope>
     </dependency>
 
+    <dependency>
+      <groupId>co.elastic.logging</groupId>
+      <artifactId>log4j2-ecs-layout</artifactId>
+      <version>1.7.0</version>
+      <scope>test</scope>
+    </dependency>
+
   </dependencies>
 
   <build>