Changes since langchain-core==0.2.13
core[patch]: Release 0.2.15 (#24149)
core[patch]: Update styles for mermaid graphs (#24147)
core[patch]: propagate parse_docstring to tool decorator (#24123)
core[patch]: Clean up indexing test code (#24139)
core[patch]: add versionadded to as_tool (#24138)
core: release 0.2.14, remove poetry 1.7 incompatible flag from root (#24137)
core: Add metadata to graph json repr (#24131)
core: fix docstring (#24129)
core: mermaid: Render metadata key-value pairs when drawing mermaid graph (#24103)
core[minor]: Add dispatching for custom events (#24080)