[PLAT-15349] Mark universe update as success after update lb config

Summary:
The previous fix
2cc1480 did not mark
the universe update as succeeded, so the universe would always show up as Error after the task completed, even
if the task succeeded.

Test Plan: Run update_lb_config and verify the universe is green

Reviewers: nsingh, amalyshev

Reviewed By: amalyshev

Subscribers: yugaware

Differential Revision: https://phorge.dev.yugabyte.com/D38400

managed/src/main/java/com/yugabyte/yw/commissioner/tasks/UpdateLoadBalancerConfig.java

@@ -1,6 +1,7 @@
 package com.yugabyte.yw.commissioner.tasks;
 
 import com.yugabyte.yw.commissioner.BaseTaskDependencies;
+import com.yugabyte.yw.commissioner.UserTaskDetails.SubTaskGroupType;
 import com.yugabyte.yw.common.PlacementInfoUtil;
 import com.yugabyte.yw.forms.UniverseDefinitionTaskParams;
 import com.yugabyte.yw.models.AvailabilityZone;
@@ -38,9 +39,9 @@ public void run() {
     log.info("Started {} task for univ uuid={}", getName(), taskParams().getUniverseUUID());
     Universe universe = getUniverse();
     try {
-      // Update the universe DB with the changes to be performed and set the 'updateInProgress' flag
-      // to prevent other updates from happening.
-      universe = lockAndFreezeUniverseForUpdate(taskParams().expectedUniverseVersion, null);
+      // Lock the universe but don't freeze it because this task doesn't perform critical updates to
+      // universe metadata.
+      universe = lockUniverse(-1 /* expectedUniverseVersion */);
 
       // Get expected LB config
       Map<LoadBalancerPlacement, LoadBalancerConfig> newLbMap =
@@ -62,6 +63,9 @@ public void run() {
           };
       saveUniverseDetails(updater);
 
+      createMarkUniverseUpdateSuccessTasks()
+          .setSubTaskGroupType(SubTaskGroupType.ConfigureUniverse);
+
       getRunnableTask().runSubTasks();
     } catch (Exception e) {
       log.error("Task Errored out with: " + e);