Add version constant for 7.16.0

.backportrc.json

@@ -3,14 +3,14 @@
   "targetBranchChoices": [
     { "name": "master", "checked": true },
     { "name": "7.x", "checked": true },
+    "7.15",
     "7.14",
-    "7.13",
     "6.8"
   ],
   "targetPRLabels": ["backport"],
   "branchLabelMapping": {
     "^v8.0.0$": "master",
-    "^v7.15.0$": "7.x",
+    "^v7.16.0$": "7.x",
     "^v(\\d+).(\\d+).\\d+$": "$1.$2"
   }
 }

.ci/bwcVersions

@@ -41,4 +41,5 @@ BWC_VERSION:
   - "7.14.0"
   - "7.14.1"
   - "7.15.0"
+  - "7.16.0"
   - "8.0.0"

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

@@ -88,6 +88,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_7_14_0 = new Version(7140099, org.apache.lucene.util.Version.LUCENE_8_9_0);
     public static final Version V_7_14_1 = new Version(7140199, org.apache.lucene.util.Version.LUCENE_8_9_0);
     public static final Version V_7_15_0 = new Version(7150099, org.apache.lucene.util.Version.LUCENE_8_9_0);
+    public static final Version V_7_16_0 = new Version(7160099, org.apache.lucene.util.Version.LUCENE_8_9_0);
     public static final Version V_8_0_0 = new Version(8000099, org.apache.lucene.util.Version.LUCENE_8_9_0);
     public static final Version CURRENT = V_8_0_0;