fix(deps): bump @langchain/openai from 0.1.3 to 0.2.1

Bumps [@langchain/openai](https://github.com/langchain-ai/langchainjs) from 0.1.3 to 0.2.1.
- [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@0.1.3...0.2.1)

---
updated-dependencies:
- dependency-name: "@langchain/openai"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -34,7 +34,7 @@
     "@json2csv/node": "^7.0.6",
     "@json2csv/transforms": "^7.0.6",
     "@langchain/community": "^0.2.16",
-    "@langchain/openai": "^0.1.3",
+    "@langchain/openai": "^0.2.1",
     "@oclif/core": "^3",
     "@oclif/plugin-help": "^6",
     "@oclif/plugin-not-found": "^3.2.1",