chore(deps): update dependency @langchain/core to v0.2.34

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@langchain/core (source)	0.2.33 -> 0.2.34

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Release Notes

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

### [`v0.2.34`](https://redirect.github.com/langchain-ai/langchainjs/compare/3fb908cfb788e75de6fee38332ff7277447d2340...31960723ee82ae8ebe47085e47b78e463b7e2925) [Compare Source](https://redirect.github.com/langchain-ai/langchainjs/compare/3fb908cfb788e75de6fee38332ff7277447d2340...31960723ee82ae8ebe47085e47b78e463b7e2925)

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Configuration

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