Merge pull request #51983 from Expensify/revert-51722-fix/51395

Revert "fix completed task report action id for onboarding"

(cherry picked from commit a93bbec)

(CP triggered by luacmartins)

src/libs/actions/Report.ts

@@ -3505,7 +3505,7 @@ function completeOnboarding(
         parentReportActionID: taskReportAction.reportAction.reportActionID,
         assigneeChatReportID: '',
         createdTaskReportActionID: taskCreatedAction.reportActionID,
-        completedTaskReportActionID: completedTaskReportAction?.reportActionID ?? '-1',
+        completedTaskReportActionID: completedTaskReportAction?.reportActionID ?? undefined,
         title: currentTask.reportName ?? '',
         description: taskDescription ?? '',
     }));