Bump langchain-core from 0.1.33 to 0.1.40

Bumps [langchain-core](https://github.com/langchain-ai/langchain) from 0.1.33 to 0.1.40.
- [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
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

pyproject.toml

@@ -29,7 +29,7 @@ torch = ">=2.1.1,<3.0"
 transformers = ">= 4.39.0, <5.0.0"
 asyncio = ">=3.4.3,<4.0"
 einops = "0.7.0"
-langchain-core = "0.1.33"
+langchain-core = "0.1.40"
 langchain-community = "0.0.29"
 langchain-experimental = "0.0.55"
 backoff = "2.2.1"