[Fix](exectuor)Fix Follower Fe query queue may not work when exec alter #27831

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -1618,6 +1618,9 @@ public class Config extends ConfigBase {
     @ConfField(mutable = true)
     public static boolean enable_query_queue = true;
 
+    @ConfField(mutable = true)
+    public static long query_queue_update_interval_ms = 5000;
+
     @ConfField(mutable = true, varType = VariableAnnotation.EXPERIMENTAL)
     public static boolean enable_cpu_hard_limit = false;