chore(deps): Bump the langchain group with 3 updates (#1336)

Bumps the langchain group with 3 updates: [@langchain/core](https://github.com/langchain-ai/langchainjs), [@langchain/langgraph](https://github.com/langchain-ai/langgraphjs) and [langchain](https://github.com/langchain-ai/langchainjs).


Updates `@langchain/core` from 1.1.1 to 1.1.2
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Commits](https://github.com/langchain-ai/langchainjs/compare/@langchain/[email protected]...@langchain/[email protected])

Updates `@langchain/langgraph` from 1.0.2 to 1.0.3
- [Release notes](https://github.com/langchain-ai/langgraphjs/releases)
- [Commits](https://github.com/langchain-ai/langgraphjs/commits)

Updates `langchain` from 1.1.2 to 1.1.3
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Commits](https://github.com/langchain-ai/langchainjs/compare/[email protected]@1.1.3)

---
updated-dependencies:
- dependency-name: "@langchain/core"
  dependency-version: 1.1.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: langchain
- dependency-name: "@langchain/langgraph"
  dependency-version: 1.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: langchain
- dependency-name: langchain
  dependency-version: 1.1.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: langchain
...

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

Author: dependabot[bot]

packages/langchain/package.json

@@ -31,7 +31,7 @@
     "lint:fix": "eslint \"**/*.ts\" --fix && prettier . --config ../../.prettierrc --ignore-path ../../.prettierignore -w --log-level error"
   },
   "dependencies": {
-    "@langchain/core": "^1.1.1",
+    "@langchain/core": "^1.1.2",
     "@sap-ai-sdk/ai-api": "workspace:^",
     "@sap-ai-sdk/core": "workspace:^",
     "@sap-ai-sdk/foundation-models": "workspace:^",