Add bwc version 2.19.1

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Signed-off-by: Andriy Redko <drreta@gmail.com>

Author: opensearch-ci-bot

.ci/bwcVersions

@@ -43,4 +43,5 @@ BWC_VERSION:
   - "2.18.0"
   - "2.18.1"
   - "2.19.0"
-  - "2.20.0"
+  - "2.19.1"
+  - "2.20.0"

README.md

@@ -7,7 +7,7 @@
 [![Security Vulnerabilities](https://img.shields.io/github/issues/opensearch-project/OpenSearch/security%20vulnerability?labelColor=red)](https://github.com/opensearch-project/OpenSearch/issues?q=is%3Aissue+is%3Aopen+label%3A"security%20vulnerability")
 [![Open Issues](https://img.shields.io/github/issues/opensearch-project/OpenSearch)](https://github.com/opensearch-project/OpenSearch/issues)
 [![Open Pull Requests](https://img.shields.io/github/issues-pr/opensearch-project/OpenSearch)](https://github.com/opensearch-project/OpenSearch/pulls)
-[![2.19.0 Open Issues](https://img.shields.io/github/issues/opensearch-project/OpenSearch/v2.19.0)](https://github.com/opensearch-project/OpenSearch/issues?q=is%3Aissue+is%3Aopen+label%3A"v2.19.0")
+[![2.19.1 Open Issues](https://img.shields.io/github/issues/opensearch-project/OpenSearch/v2.19.1)](https://github.com/opensearch-project/OpenSearch/issues?q=is%3Aissue+is%3Aopen+label%3A"v2.19.1")
 [![2.18.1 Open Issues](https://img.shields.io/github/issues/opensearch-project/OpenSearch/v2.18.1)](https://github.com/opensearch-project/OpenSearch/issues?q=is%3Aissue+is%3Aopen+label%3A"v2.18.1")
 [![3.0.0 Open Issues](https://img.shields.io/github/issues/opensearch-project/OpenSearch/v3.0.0)](https://github.com/opensearch-project/OpenSearch/issues?q=is%3Aissue+is%3Aopen+label%3A"v3.0.0")
 [![GHA gradle check](https://github.com/opensearch-project/OpenSearch/actions/workflows/gradle-check.yml/badge.svg)](https://github.com/opensearch-project/OpenSearch/actions/workflows/gradle-check.yml)

libs/core/src/main/java/org/opensearch/Version.java

@@ -114,6 +114,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_2_18_0 = new Version(2180099, org.apache.lucene.util.Version.LUCENE_9_12_0);
     public static final Version V_2_18_1 = new Version(2180199, org.apache.lucene.util.Version.LUCENE_9_12_1);
     public static final Version V_2_19_0 = new Version(2190099, org.apache.lucene.util.Version.LUCENE_9_12_1);
+    public static final Version V_2_19_1 = new Version(2190199, org.apache.lucene.util.Version.LUCENE_9_12_1);
     public static final Version V_2_20_0 = new Version(2200099, org.apache.lucene.util.Version.LUCENE_9_12_1);
     public static final Version V_3_0_0 = new Version(3000099, org.apache.lucene.util.Version.LUCENE_10_1_0);
     public static final Version CURRENT = V_3_0_0;