Update dependency @langchain/core to v0.2.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@langchain/core (source)	0.2.8 -> 0.2.9

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Release Notes

langchain-ai/langchainjs (@​langchain/core)

### [`v0.2.9`](https://togithub.com/langchain-ai/langchainjs/compare/0fc87849e756685be78b4e1e7497c0300d97a3cd...2de06ad00bf0e6d4cb2802b37fec8d723161f796) [Compare Source](https://togithub.com/langchain-ai/langchainjs/compare/91ec5ba129ece755d60f6ed33d35d7ef92e29bd8...c37b480223db49d291317000b6c9427678b77a9f)

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Configuration

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