Bump langchain from 0.0.350 to 0.0.351 (#2)

Bumps [langchain](https://github.com/langchain-ai/langchain) from 0.0.350 to 0.0.351.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@v0.0.350...v0.0.351)

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

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

requirements.txt

@@ -4,7 +4,7 @@ git+https://github.com/mediawiki-utilities/python-mwtypes@updates_schema_0.11
 chainlit==0.7.700
 chromadb==0.4.20
 httptools==0.6.1
-langchain==0.0.350
+langchain==0.0.351
 mwparserfromhell==0.6.5
 sentence-transformers==2.2.2
 tiktoken==0.5.2