chore(deps): bump the langchain group with 2 updates (#1562)

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


Updates `@langchain/core` from 0.3.47 to 0.3.48
- [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/@langchain/core==0.3.48)

Updates `@langchain/openai` from 0.5.6 to 0.5.7
- [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/@langchain/openai==0.5.7)

---
updated-dependencies:
- dependency-name: "@langchain/core"
  dependency-version: 0.3.48
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: langchain
- dependency-name: "@langchain/openai"
  dependency-version: 0.5.7
  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

@@ -34,8 +34,8 @@
     "@fortawesome/free-solid-svg-icons": "6.7.2",
     "@fortawesome/react-fontawesome": "0.2.2",
     "@langchain/community": "0.3.41",
-    "@langchain/core": "0.3.47",
-    "@langchain/openai": "0.5.6",
+    "@langchain/core": "0.3.48",
+    "@langchain/openai": "0.5.7",
     "@million/lint": "1.0.14",
     "ai": "4.1.46",
     "babel-plugin-react-compiler": "19.0.0-beta-714736e-20250131",