chore: replacing Optional with null check

Author: ColinZou

core/src/main/java/com/netflix/conductor/core/execution/WorkflowExecutorOps.java

@@ -870,12 +870,10 @@ public TaskModel updateTask(TaskResult taskResult) {
             LOGGER.error(errorMsg, e);
         }
         List<TaskExecLog> taskLogs = taskResult.getLogs();
-        Optional.ofNullable(taskLogs)
-          .ifPresent(
-                  logs -> {
-                      logs.forEach(taskExecLog -> taskExecLog.setTaskId(task.getTaskId()));
-                      executionDAOFacade.addTaskExecLog(taskLogs);
-                  });
+        if (null != taskLogs) {
+            taskLogs.forEach(taskExecLog -> taskExecLog.setTaskId(task.getTaskId()));
+            executionDAOFacade.addTaskExecLog(taskLogs);
+        }
         if (task.getStatus().isTerminal()) {
             long duration = getTaskDuration(0, task);
             long lastDuration = task.getEndTime() - task.getStartTime();