chore(deps): update dependency langchain-community to v0.2.19 [security]

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
langchain-community (changelog)	==0.2.16 -> ==0.2.19

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Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

GitHub Vulnerability Alerts

CVE-2024-8309

A vulnerability in the GraphCypherQAChain class of langchain-ai/langchain version 0.2.5 allows for SQL injection through prompt injection. This vulnerability can lead to unauthorized data manipulation, data exfiltration, denial of service (DoS) by deleting all data, breaches in multi-tenant security environments, and data integrity issues. Attackers can create, update, or delete nodes and relationships without proper authorization, extract sensitive data, disrupt services, access data across different tenants, and compromise the integrity of the database.

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[NimJay]

Error:

#10 5.830 The conflict is caused by:
#10 5.830     The user requested langchain==0.2.16
#10 5.830     langchain-community 0.3.0 depends on langchain<0.4.0 and >=0.3.0

[olivi-eh]

Updated langchain to match requirements for langchain-community. Checks are now all passing.