Add `worker_version` to queued `Job`
This can be useful when e.g. killing a zombie job because right now we assume that the current worker version is the one the worker was using when the job started.

Then we can properly kill zombie jobs that come from an older worker version.

See https://github.com/huggingface/datasets-server/pull/827#discussion_r1114260946
Add `worker_version` to queued `Job`: This can be useful when e.g. killing a zombie job because right now we assume that the current worker version is the one the worker was using when the job started.

Then we can properly kill zombie jobs that come from an older worker version.

See https://github.com/huggingface/datasets-server/pull/827#discussion_r1114260946