Graceful Termination Queue Listen while scaling down

Hello,

We are running queue workers in a Kubernetes environment where pods are short-lived and can be interrupted at any time. Currently, the yii\queue\cli\Queue::listen() method continuously listens for new messages until it receives a termination signal (SIGTERM, SIGINT, or SIGHUP). Found related https://github.com/yiisoft/yii2-queue/issues/399

When we push a long-running job to the queue and send a termination signal (e.g., Ctrl+C), the worker behaves correctly by finishing the current job before stopping. However, after the job is processed, the listen() method hangs. Once a new message is pushed to the queue, the process stops immediately.

Expected Behavior for Graceful Termination when scaling down workers:
Termination signal + empty queue → The worker should stop immediately.
Termination signal during job processing → The worker should complete the current job and stop without continuing to listen for new messages.
Is there a way to achieve this behavior natively in Yii2 Queue?

Start with yii\queue\cli\Queue::listen() and the related issue #399. Reproduce the signal behavior with a long-running job, then an empty queue, and verify how SIGTERM, SIGINT, and SIGHUP are handled. Done means a worker finishes its current job after a termination signal and exits without waiting for another message.