gpu support for `ImplicitRanker`

[blondered]

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Feature Description

use_gpu argument to ImplicitRanker.rank method that calls implicit.gpu.KnnQuery().topk instead of implicit.cpu.topk.topk when set to True.

Why this feature?

Allows for gpu inference for a range of models

Additional context

Described at https://github.com/MobileTeleSystems/RecTools/issues/199