chore(deps): bump langchain in /source/panel/evaluator

Bumps [langchain](https://github.com/langchain-ai/langchain) from 0.1.0 to 0.1.11.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@v0.1.0...v0.1.11)

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

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

source/panel/evaluator/requirements.txt

@@ -1,7 +1,7 @@
 python-dotenv
 PyPDF2
 streamlit==1.31.1
-langchain==0.1.0
+langchain==0.1.11
 openai==1.1.0
 tiktoken==0.5.1
 boto3==1.28.84