Increment version to 2.7.1 (opensearch-project#7370)

Signed-off-by: GitHub <noreply@github.com>
Co-authored-by: opensearch-ci-bot <opensearch-ci-bot@users.noreply.github.com>

Author: opensearch-trigger-bot[bot]

.ci/bwcVersions

@@ -64,3 +64,4 @@ BWC_VERSION:
   - "2.5.1"
   - "2.6.0"
   - "2.6.1"
+  - "2.7.0"

buildSrc/version.properties

@@ -1,4 +1,4 @@
-opensearch        = 2.7.0
+opensearch        = 2.7.1
 lucene            = 9.5.0
 
 bundled_jdk_vendor = adoptium

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

@@ -112,7 +112,8 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_2_6_0 = new Version(2060099, org.apache.lucene.util.Version.LUCENE_9_5_0);
     public static final Version V_2_6_1 = new Version(2060199, org.apache.lucene.util.Version.LUCENE_9_5_0);
     public static final Version V_2_7_0 = new Version(2070099, org.apache.lucene.util.Version.LUCENE_9_5_0);
-    public static final Version CURRENT = V_2_7_0;
+    public static final Version V_2_7_1 = new Version(2070199, org.apache.lucene.util.Version.LUCENE_9_5_0);
+    public static final Version CURRENT = V_2_7_1;
 
     public static Version readVersion(StreamInput in) throws IOException {
         return fromId(in.readVInt());