Release langchain-huggingface==0.0.2

Changes since langchain-huggingface==0.0.1

huggingface[patch]: release 0.0.2 (#22493)
huggingface[patch]: Support for HuggingFacePipeline in ChatHuggingFace. (#22194)
huggingface[patch]: Skip Login to HuggingFaceHub when token is not set (#22365)
docs: huggingface package (#21645)