fix exclude_keys to support smolvla

[zuoxingdong]

What this does

This PR adds exclude_keys to populate_queues for supporting smolvla action selection: https://github.com/huggingface/lerobot/blob/main/lerobot/common/policies/smolvla/modeling_smolvla.py#L285

cc: @danaaubakirova @Cadene

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[aliberts]

Thank you!
I'm closing this since it's a duplicate of #1208