feat(opensearch): OpenSearch 2.9 engine version (#27612)

[Amazon OpenSearch Service now supports OpenSearch version 2.9](https://aws.amazon.com/about-aws/whats-new/2023/10/amazon-opensearch-service-opensearch-version-2-9/). This PR adds the new engine version.

Closes #27574

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: tam0ri

packages/@aws-cdk-testing/framework-integ/test/aws-opensearchservice/test/integ.opensearch.min.js.snapshot/IntegDefaultTestDeployAssert4E6713E1.assets.json

@@ -7,8 +7,8 @@
      "DedicatedMasterEnabled": false,
      "InstanceCount": 1,
      "InstanceType": "r5.large.search",
-     "ZoneAwarenessEnabled": false,
-     "MultiAZWithStandbyEnabled": false
+     "MultiAZWithStandbyEnabled": false,
+     "ZoneAwarenessEnabled": false
     },
     "DomainEndpointOptions": {
      "EnforceHTTPS": false,
@@ -22,7 +22,7 @@
     "EncryptionAtRestOptions": {
      "Enabled": false
     },
-    "EngineVersion": "OpenSearch_2.7",
+    "EngineVersion": "OpenSearch_2.9",
     "LogPublishingOptions": {},
     "NodeToNodeEncryptionOptions": {
      "Enabled": false

packages/@aws-cdk-testing/framework-integ/test/aws-opensearchservice/test/integ.opensearch.min.js.snapshot/cdk-integ-opensearch.assets.json

@@ -9,7 +9,7 @@ class TestStack extends Stack {
 
     // deploy the latest opensearch domain with minimal configuration
     const domainProps: opensearch.DomainProps = {
-      version: opensearch.EngineVersion.OPENSEARCH_2_7,
+      version: opensearch.EngineVersion.OPENSEARCH_2_9,
       removalPolicy: RemovalPolicy.DESTROY,
       capacity: {
         multiAzWithStandbyEnabled: false,

packages/@aws-cdk-testing/framework-integ/test/aws-opensearchservice/test/integ.opensearch.min.js.snapshot/cdk-integ-opensearch.template.json

@@ -87,6 +87,9 @@ export class EngineVersion {
   /** AWS OpenSearch 2.7 */
   public static readonly OPENSEARCH_2_7 = EngineVersion.openSearch('2.7');
 
+  /** AWS OpenSearch 2.9 */
+  public static readonly OPENSEARCH_2_9 = EngineVersion.openSearch('2.9');
+
   /**
    * Custom ElasticSearch version
    * @param version custom version number

packages/@aws-cdk-testing/framework-integ/test/aws-opensearchservice/test/integ.opensearch.min.js.snapshot/cdk.out

@@ -39,6 +39,7 @@ const testedOpenSearchVersions = [
   EngineVersion.OPENSEARCH_2_3,
   EngineVersion.OPENSEARCH_2_5,
   EngineVersion.OPENSEARCH_2_7,
+  EngineVersion.OPENSEARCH_2_9,
 ];
 
 each(testedOpenSearchVersions).test('connections throws if domain is not placed inside a vpc', (engineVersion) => {
@@ -201,6 +202,7 @@ each([
   [EngineVersion.OPENSEARCH_2_3, 'OpenSearch_2.3'],
   [EngineVersion.OPENSEARCH_2_5, 'OpenSearch_2.5'],
   [EngineVersion.OPENSEARCH_2_7, 'OpenSearch_2.7'],
+  [EngineVersion.OPENSEARCH_2_9, 'OpenSearch_2.9'],
 ]).test('minimal example renders correctly', (engineVersion, expectedCfVersion) => {
   new Domain(stack, 'Domain', { version: engineVersion });