fix the error that task name conflcit with nccu sync task

lib/tasks/sync_ntnu_personal_data_tasks.rake

@@ -1,4 +1,4 @@
-namespace :sync_personal_plugins do
+namespace :sync_ntnu_personal_plugins do
   desc 'sync_personal_plugins from NTNU'
   task :sync => [:environment] do
     # User info include ntnu_account and member_profile_id