Bump langchain-core in /experimental/fm-asr-streaming-rag/chain-server

Bumps [langchain-core](https://github.com/langchain-ai/langchain) from 0.1.3 to 0.1.34.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](https://github.com/langchain-ai/langchain/commits)

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

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

experimental/fm-asr-streaming-rag/chain-server/requirements.txt

@@ -12,7 +12,7 @@ minio==7.2.0
 asyncpg==0.29.0
 psycopg2-binary==2.9.9
 pgvector==0.2.4
-langchain-core==0.1.3
+langchain-core==0.1.34
 langchain-nvidia-ai-endpoints==0.0.1
 langchain-nvidia-trt==0.0.1rc0
 nemollm==0.3.4