Moving to uv to enable dependency override and cleaner locks

[Narsil]

What does this PR do?

Fixes # (issue)

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[baptistecolle]

LGTM

[regisss]

LGTM

cc @kaixuanliu

[kaixuanliu]

@Narsil Hi, I validated this PR, on CPU and XPU, it works well. But on HPU, I cannot start the backend, and I did a check by pip list, it does not install transformers, optimum-habana etc. Can you help double check?