Fix a slow test.

[Narsil]

What does this PR do?

Fixes the test

RUN_SLOW=1 RUN_PIPELINE_TESTS=1 pytest -sv tests/test_pipelines_audio_classification.py::Audi
oClassificationPipelineTests::test_large_model_pt

Fails on torch==1.10.0+cu113. Given the small differences of results I assume this is of no consequence.

Fixes # (issue)

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[LysandreJik]

LGTM!