chore(deps): Bump the langchain group with 5 updates (#1299)

Bumps the langchain group with 5 updates:

| Package | From | To |
| --- | --- | --- |
| [@langchain/core](https://github.com/langchain-ai/langchainjs) | `1.0.6` | `1.1.0` |
| [@langchain/classic](https://github.com/langchain-ai/langchainjs) | `1.0.4` | `1.0.5` |
| [@langchain/mcp-adapters](https://github.com/langchain-ai/langchainjs) | `1.0.0` | `1.0.1` |
| [@langchain/textsplitters](https://github.com/langchain-ai/langchainjs) | `1.0.0` | `1.0.1` |
| [langchain](https://github.com/langchain-ai/langchainjs) | `1.0.6` | `1.1.1` |


Updates `@langchain/core` from 1.0.6 to 1.1.0
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Commits](https://github.com/langchain-ai/langchainjs/compare/[email protected]...@langchain/openai==1.1.0)

Updates `@langchain/classic` from 1.0.4 to 1.0.5
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Commits](https://github.com/langchain-ai/langchainjs/compare/@langchain/[email protected]@1.0.5)

Updates `@langchain/mcp-adapters` from 1.0.0 to 1.0.1
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Commits](https://github.com/langchain-ai/langchainjs/compare/@langchain/mcp-adapters==1.0.0...@langchain/[email protected])

Updates `@langchain/textsplitters` from 1.0.0 to 1.0.1
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Commits](https://github.com/langchain-ai/langchainjs/compare/@langchain/textsplitters==1.0.0...@langchain/[email protected])

Updates `langchain` from 1.0.6 to 1.1.1
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Commits](https://github.com/langchain-ai/langchainjs/compare/[email protected]@1.1.1)

---
updated-dependencies:
- dependency-name: "@langchain/core"
  dependency-version: 1.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: langchain
- dependency-name: "@langchain/classic"
  dependency-version: 1.0.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: langchain
- dependency-name: "@langchain/mcp-adapters"
  dependency-version: 1.0.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: langchain
- dependency-name: "@langchain/textsplitters"
  dependency-version: 1.0.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: langchain
- dependency-name: langchain
  dependency-version: 1.1.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  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": "^1.0.6",
+    "@langchain/core": "^1.1.0",
     "@sap-ai-sdk/ai-api": "workspace:^",
     "@sap-ai-sdk/core": "workspace:^",
     "@sap-ai-sdk/foundation-models": "workspace:^",