fix alarm query time bucket error (#4768)

Co-authored-by: NMrproliu <mrproliu@lagou.com>

oap-server/server-query-plugin/query-graphql-plugin/src/main/java/org/apache/skywalking/oap/query/graphql/resolver/AlarmQuery.java

@@ -57,6 +57,6 @@ public class AlarmQuery implements GraphQLQueryResolver {
         }
 
         return getQueryService().getAlarm(
-            scopeId, keyword, paging, duration.getStartTimeBucket(), duration.getEndTimeBucket());
+            scopeId, keyword, paging, duration.getStartTimeBucketInSec(), duration.getEndTimeBucketInSec());
     }
 }