Update `HubertModelIntegrationTest.test_inference_keyword_spotting`
# What does this PR do?

Our CI is updated to use torch 1.13 (which also use cuda 11.6) instead of torch 1.12 (cuda 11.3), this test fails. The tolerance `2e-2` is not enough anymore, but it passes with `3e-2`.

_The documentation is not available anymore as the PR was closed or merged._