Move 2.x version to 2.13.0 (opensearch-project#12227) (opensearch-project#12230)

Signed-off-by: Andriy Redko <andriy.redko@aiven.io>

Author: reta

.ci/bwcVersions

@@ -28,3 +28,4 @@ BWC_VERSION:
   - "2.11.1"
   - "2.11.2"
   - "2.12.0"
+  - "2.13.0"

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

@@ -99,6 +99,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_2_11_1 = new Version(2110199, org.apache.lucene.util.Version.LUCENE_9_7_0);
     public static final Version V_2_11_2 = new Version(2110299, org.apache.lucene.util.Version.LUCENE_9_7_0);
     public static final Version V_2_12_0 = new Version(2120099, org.apache.lucene.util.Version.LUCENE_9_9_2);
+    public static final Version V_2_13_0 = new Version(2130099, org.apache.lucene.util.Version.LUCENE_9_9_2);
     public static final Version V_3_0_0 = new Version(3000099, org.apache.lucene.util.Version.LUCENE_9_9_2);
     public static final Version CURRENT = V_3_0_0;