Update LangChain link

update the langchain link to point to latest docs

Author: laeg

docs/en/integrations/index.mdx

@@ -192,7 +192,7 @@ We are actively compiling this list of ClickHouse integrations below, so it's no
 |HouseWatch|<img src={require('./images/logos/housewatch.png').default} className="image" alt="HouseWatch logo" style={{width: '3rem', 'backgroundColor': 'transparent'}}/>|Data management| Open source tool for monitoring and managing ClickHouse clusters. |[GitHub](https://github.com/PostHog/HouseWatch)|
 |IBM Instana| |Data management|Instana can auto-discover and monitor ClickHouse server processes|[Documentation](https://www.ibm.com/docs/en/instana-observability/current?topic=technologies-monitoring-clickhouse)|
 |Jitsu|<JitsuSVG style={{width: '3rem'}} />|Data analytics|An open-source event collection platform.|[Documentation](https://classic.jitsu.com/docs/destinations-configuration/clickhouse-destination)|
-|LangChain|🦜️🔗|SDK|LangChain is a framework for developing applications powered by language models|[Documentation](https://python.langchain.com/v0.2/docs/integrations/vectorstores/clickhouse/)|
+|LangChain|🦜️🔗|SDK|LangChain is a framework for developing applications powered by language models|[Documentation](https://python.langchain.com/docs/integrations/vectorstores/clickhouse/)|
 |Luzmo|<img src={require('./images/logos/luzmo.png').default} className="image" alt="Luzmo logo" style={{width: '3rem', 'backgroundColor': 'transparent'}}/>|Data visualization|Luzmo is an embedded analytics platform with a native ClickHouse integration, purpose-built for Software and SaaS applications.|[Documentation](/docs/en/integrations/data-visualization/luzmo-and-clickhouse.md)|
 |Mage|<img src={require('./images/logos/mage.jpg').default} className="image" alt="Metaplane logo" style={{width: '3rem', 'backgroundColor': 'transparent'}}/>|Data Ingestion|Open-source data pipeline tool for transforming and integrating data|[Documentation](https://docs.mage.ai/integrations/databases/ClickHouse)
 |Metaplane|<img src={require('./images/logos/logo_metaplane.png').default} className="image" alt="Metaplane logo" style={{width: '3rem', 'backgroundColor': 'transparent'}}/>|Data management|Data observability for every data team|[Website](https://www.metaplane.dev/integrations)|