transformers

74f6f91a - Updated ConversationalPipeline to work with encoder-decoder models (#8207)

Updated ConversationalPipeline to work with encoder-decoder models (#8207) * Updated ConversationalPipeline to work with encoder-decoder models (e.g. BlenderBot) * Addition of integration test for EncoderDecoder conversation model Co-authored-by: Lysandre Debut <lysandre@huggingface.co>