3.1.1

## TL;DR

Providing `num_speakers` to [`pyannote/speaker-diarization-3.1`](https://hf.co/pyannote/speaker-diarization-3.1) now [works as expected](https://github.com/pyannote/pyannote-audio/issues/1567).

## Full changelog

### Fixes

- fix(pipeline): fix support for setting `num_speakers` in [`pyannote/speaker-diarization-3.1`](https://hf.co/pyannote/speaker-diarization-3.1) pipeline