Enable BWC after backporting lucene upgrade (#61978)

build.gradle

@@ -174,9 +174,8 @@ tasks.register("verifyVersions") {
  * after the backport of the backcompat code is complete.
  */
 
-boolean bwc_tests_enabled = false
-final String bwc_tests_disabled_issue =
-  "https://github.com/elastic/elasticsearch/pull/61974" /* place a PR link here when committing bwc changes */
+boolean bwc_tests_enabled = true
+final String bwc_tests_disabled_issue = "" /* place a PR link here when committing bwc changes */
 if (bwc_tests_enabled == false) {
   if (bwc_tests_disabled_issue.isEmpty()) {
     throw new GradleException("bwc_tests_disabled_issue must be set when bwc_tests_enabled == false")

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

@@ -82,7 +82,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_7_9_0 = new Version(7090099, org.apache.lucene.util.Version.LUCENE_8_6_0);
     public static final Version V_7_9_1 = new Version(7090199, org.apache.lucene.util.Version.LUCENE_8_6_2);
     public static final Version V_7_9_2 = new Version(7090299, org.apache.lucene.util.Version.LUCENE_8_6_2);
-    public static final Version V_7_10_0 = new Version(7100099, org.apache.lucene.util.Version.LUCENE_8_6_2);
+    public static final Version V_7_10_0 = new Version(7100099, 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;