build(deps): bump langchain-community from 0.2.9 to 0.2.19 in /llm_demo

[dependabot[bot]]

Bumps langchain-community from 0.2.9 to 0.2.19.

Release notes

Sourced from langchain-community's releases.

langchain-community==0.2.19

Changes since langchain-community==0.3.6

community: release 0.2.19 (#28057) community: patch graphqa chains (CVE-2024-8309) (#28050) langchain,community[patch]: release with bumped core (#27854) Added mapping to fix CI for #langchain-aws:227. (#27114) community: poetry lock for cffi dep (#26674)

langchain-community==0.2.18

Changes since langchain-community==0.3.5

langchain,community[patch]: release with bumped core (#27854) Added mapping to fix CI for #langchain-aws:227. (#27114) community: poetry lock for cffi dep (#26674)

langchain-community==0.2.17

Changes since langchain-community==0.2.16

community[patch]: Release 0.2.17 (#26432) community, openai: support nested dicts (#26414) core[minor]: Remove serialized manifest from tracing requests for non-llm runs (#26270) community: Add docstring for HtmlLinkExtractor (#26213) community: Add docstring for GLiNERLinkExtractor (#26218) community: Add docstring for KeybertLinkExtractor (#26210) Add session expired retry to neo4j graph (#26182) Adding bind_tools in ChatOctoAI (#26168) infra: Clear cache for env-var checks (#26073) fmt fmt fmt Improvement[Community] Improve args description in api doc of DocArrayInMemorySearch (#26024) community: delta in openai choice can be None, creates handler for that (#25954)

Commits

• b9d892e community: release 0.2.19 (#28057)
• 64c317e community: patch graphqa chains (CVE-2024-8309) (#28050)
• 76e1dc7 langchain,community[patch]: release with bumped core (#27854)
• 9fdeb74 core[patch]: Release 0.2.43 (#27808)
• 7d481f1 core[patch]: remove prompt img loading (#27807)
• 33a5397 infra: turn off release attestations (#27766)
• 283cb50 core[patch]: Release 0.2.42 (#27763)
• 5e3cee6 core[patch]: make get_all_basemodel_annotations public (#27762)
• 8073146 Added mapping to fix CI for #langchain-aws:227. (#27114)
• 6cfd1e8 core[patch]: Release 0.2.41 (#26687)
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