chore(deps): bump langchain (#52)

Bumps [langchain](https://github.com/langchain-ai/langchain) from 0.0.312 to 0.0.317.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@v0.0.312...v0.0.317)

---
updated-dependencies:
- dependency-name: langchain
  dependency-type: direct:production
...

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

lambda/aws-summarization-appsync-stepfn/summary_generator/requirements.txt

@@ -3,7 +3,7 @@ boto3>=1.28.61
 botocore>=1.31.61
 requests==2.31.0
 requests-aws4auth==1.2.3
-langchain==0.0.312
+langchain==0.0.317
 nltk==3.8.1
 urllib3<2
 aws-lambda-powertools