Bump langchain from 0.3.1 to 0.3.2 in the python-requirements group

Bumps the python-requirements group with 1 update: [langchain](https://github.com/langchain-ai/langchain).


Updates `langchain` from 0.3.1 to 0.3.2
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain==0.3.1...langchain==0.3.2)

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

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

requirements.txt

@@ -5,7 +5,7 @@ chainlit==1.2.0
 chromadb>=0.4.22
 discord>=2.3.2
 fastapi>=0.109.1
-langchain==0.3.1
+langchain==0.3.2
 langchainhub>=0.1.20
 langchain-chroma>=0.1.2
 langchain-community==0.3.1