Bump langchain-community from 0.3.0 to 0.3.8

Bumps [langchain-community](https://github.com/langchain-ai/langchain) from 0.3.0 to 0.3.8.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-community==0.3.0...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] <[email protected]>

requirements.txt

@@ -16,7 +16,7 @@ hnswlib==0.8.0
 jsonschema==4.23.0
 kaleido==0.2.1
 langchain==0.3.0
-langchain-community==0.3.0
+langchain-community==0.3.8
 levenshtein==0.26.0
 lxml==5.3.0
 matplotlib==3.9.2