Update OpenSearch version to 1.2.3

Signed-off-by: Miki <miki@amazon.com>

_config.yml

@@ -5,7 +5,7 @@ baseurl: "/docs/latest" # the subpath of your site, e.g. /blog
 url: "https://opensearch.org" # the base hostname & protocol for your site, e.g. http://example.com
 permalink: /:path/
 
-opensearch_version: 1.2.0
+opensearch_version: 1.2.3
 opensearch_major_minor_version: 1.2
 lucene_version: 8_9_0
 

version-history.md

@@ -9,6 +9,7 @@ permalink: /version-history/
 
 OpenSearch version | Release highlights | Release date
 :--- | :--- | :--- | :---
+[1.2.3](https://github.com/opensearch-project/OpenSearch/blob/main/release-notes/opensearch.release-notes-1.2.3.md) | Updates the version of Log4j used in OpenSearch to Log4j 2.17.0 as recommended by the advisory in [CVE-2021-45105](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45105). | 22 December 2021
 [1.2.0](https://github.com/opensearch-project/OpenSearch/blob/main/release-notes/opensearch.release-notes-1.2.0.md) | Adds observability, new attribution ratio API for Anomaly Detection, shard-level indexing back-pressure, new "match" query type for SQL and PPL, support for Faiss libraries in k-NN, and custom Dashboards branding. | 23 November 2021
 [1.1.0](https://github.com/opensearch-project/opensearch-build/tree/main/release-notes/opensearch-release-notes-1.1.0.md) | Adds cross-cluster replication, security for Index Management, bucket-level alerting, a CLI to help with upgrading from Elasticsearch OSS to OpenSearch, and enhancements to high cardinality data in the anomaly detection plugin. | 5 October 2021
 [1.0.1](https://github.com/opensearch-project/opensearch-build/tree/main/release-notes/opensearch-release-notes-1.0.1.md) | Bug fixes. | 1 September 2021