Changes since langchain-core==1.4.3
hotfix(core): bump lockfile(s) (#38032)
release(core): 1.4.4 (#38031)
fix(core): support content block tokens in callbacks (#34739)
chore(core): improve typing of Runnable __or__ (#34530)
chore(core): fix some any generics (#34545)
fix(core): accept sequence tool error content (#38005)
fix(core): type structured tool error handler output (#38003)
docs(core): document multimodal handling in get_buffer_string (#37994)