Fix order of task skipping if no output

Author: jonathanmetzman

src/clusterfuzz/_internal/bot/tasks/task_creation.py

@@ -316,10 +316,10 @@ def preprocess_utasks_and_queue_ttasks(tasks: List[Optional[Task]]):
           task.name, task.argument, task.job, queue=task.queue_for_platform)
       logs.log(f'UTask {task.name} not remote.')
       continue
+    _preprocess(task)
     if task.uworker_input is None:
       logs.log('No uworker_input.')
       continue
-    _preprocess(task)
     yield task