chore(deps): bump the langchain group with 2 updates (#1106)

Bumps the langchain group with 2 updates: [@langchain/community](https://github.com/langchain-ai/langchainjs) and [langchain](https://github.com/langchain-ai/langchainjs).


Updates `@langchain/community` from 0.3.14 to 0.3.15
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Changelog](https://github.com/langchain-ai/langchainjs/blob/main/release_workspace.js)
- [Commits](https://github.com/langchain-ai/langchainjs/commits)

Updates `langchain` from 0.3.5 to 0.3.6
- [Release notes](https://github.com/langchain-ai/langchainjs/releases)
- [Changelog](https://github.com/langchain-ai/langchainjs/blob/main/release_workspace.js)
- [Commits](langchain-ai/langchainjs@0.3.5...0.3.6)

---
updated-dependencies:
- dependency-name: "@langchain/community"
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: langchain
- dependency-name: langchain
  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]

package-lock.json

@@ -33,7 +33,7 @@
     "@fortawesome/free-brands-svg-icons": "6.6.0",
     "@fortawesome/free-solid-svg-icons": "6.6.0",
     "@fortawesome/react-fontawesome": "0.2.2",
-    "@langchain/community": "0.3.14",
+    "@langchain/community": "0.3.15",
     "@langchain/core": "0.3.18",
     "@langchain/openai": "0.3.13",
     "@million/lint": "1.0.12",
@@ -48,7 +48,7 @@
     "gpt-tokenizer": "2.6.2",
     "he": "1.2.0",
     "jotai": "2.10.2",
-    "langchain": "0.3.5",
+    "langchain": "0.3.6",
     "markdown-to-txt": "2.0.1",
     "nanoid": "5.0.8",
     "next": "15.0.3",