Add version 7.12.0

.ci/bwcVersions

@@ -29,4 +29,5 @@ BWC_VERSION:
   - "7.10.1"
   - "7.10.2"
   - "7.11.0"
+  - "7.12.0"
   - "8.0.0"

server/src/main/java/org/elasticsearch/Version.java

@@ -86,6 +86,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_7_10_1 = new Version(7100199, org.apache.lucene.util.Version.LUCENE_8_7_0);
     public static final Version V_7_10_2 = new Version(7100299, org.apache.lucene.util.Version.LUCENE_8_7_0);
     public static final Version V_7_11_0 = new Version(7110099, org.apache.lucene.util.Version.LUCENE_8_7_0);
+    public static final Version V_7_12_0 = new Version(7120099, org.apache.lucene.util.Version.LUCENE_8_7_0);
     public static final Version V_8_0_0 = new Version(8000099, org.apache.lucene.util.Version.LUCENE_8_7_0);
     public static final Version CURRENT = V_8_0_0;