Release langchain-together==0.1.3

Changes since langchain-together==0.1.2

together: bump langchain-core (#22616)
together[patch]: Release 0.1.3 (#22615)
together, upstage: bump minimum langchain-openai version (#22505)
infra: rm unused # noqa violations (#22049)
partners: bump core in packages implementing ls_params (#21868)
core, standard tests, partner packages: add test for model params (#21677)