v4.3.1: Patch release

This patch release modifies the API of the Wav2Vec2 model: the Wav2Vec2ForCTC was added as a replacement of Wav2Vec2ForMaskedLM. Wav2Vec2ForMaskedLM is kept for backwards compatibility but is deprecated.

• Deprecate Wav2Vec2ForMaskedLM and add Wav2Vec2ForCTC #10089 (@patrickvonplaten)