Upgrade: [dependabot] - Update langchain-community requirement

Updates the requirements on [langchain-community](https://github.com/langchain-ai/langchain) to permit the latest version.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-cli==0.0.33...langchain-community==0.0.38)

---
updated-dependencies:
- dependency-name: langchain-community
  dependency-version: 0.0.38
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]