chore: rename the event index (#13293)

Author: wankai123

docs/en/changes/changes.md

@@ -26,7 +26,7 @@
 * [Break Change]BanyanDB: Setup new Group policy.
 * Bump up commons-beanutils to 1.11.0.
 * Refactor: simplify the `Accept` http header process.
-* [Break Change]Storage: Move `event` from metrics to recods.
+* [Break Change]Storage: Move `event` from metrics to records.
 * Remove string limitation in Jackson deserializer for ElasticSearch client.
 * Fix `disable.oal` does not work.
 

oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/record/Event.java

@@ -41,7 +41,7 @@
 @BanyanDB.TimestampColumn(Event.TIMESTAMP)
 public class Event extends Record {
 
-    public static final String INDEX_NAME = "events";
+    public static final String INDEX_NAME = "event";
 
     public static final String UUID = "uuid";