chore(deps): bump @langchain/community and langchain (#930)

Removes [@langchain/community](https://github.com/langchain-ai/langchainjs). It's no longer used after updating ancestor dependency [langchain](https://github.com/langchain-ai/langchainjs). These dependencies need to be updated together.


Removes `@langchain/community`

Updates `langchain` from 0.1.32 to 0.3.5
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Changelog](https://github.com/langchain-ai/langchainjs/blob/main/release_workspace.js)
- [Commits](langchain-ai/langchainjs@0.1.32...0.3.5)

---
updated-dependencies:
- dependency-name: "@langchain/community"
  dependency-type: indirect
- dependency-name: langchain
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>