Bump langchain-community from 0.3.4 to 0.3.8 (#73)

Bumps [langchain-community](https://github.com/langchain-ai/langchain) from 0.3.4 to 0.3.8.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-community==0.3.4...langchain-community==0.3.8)

---
updated-dependencies:
- dependency-name: langchain-community
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,6 +1,6 @@
 beautifulsoup4==4.12.3
 langchain-couchbase==0.2.2
-langchain-community==0.3.4
+langchain-community==0.3.8
 langchain-openai==0.2.5
 langsmith==0.1.139
 python-dotenv==1.0.1