langchain-cli==0.0.28

Changes since langchain-cli==0.0.27

cli: release 0.0.28 (#24852)
cli: register new integration doc templates (#24854)
docs: add retriever integrations template (#24836)
cli: embed docstring template (#24855)
cli/docs: embedding template standardization (#24849)
docs[patch]: Adds first kv store doc matching new template (#24844)