Bump openai from 5.12.2 to 6.8.1

Bumps [openai](https://github.com/openai/openai-node) from 5.12.2 to 6.8.1.
- [Release notes](https://github.com/openai/openai-node/releases)
- [Changelog](https://github.com/openai/openai-node/blob/master/CHANGELOG.md)
- [Commits](openai/openai-node@v5.12.2...v6.8.1)

---
updated-dependencies:
- dependency-name: openai
  dependency-version: 6.8.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -28,7 +28,7 @@
     "@rollup/plugin-json": "^6.1.0",
     "@types/js-yaml": "^4.0.9",
     "js-yaml": "^4.1.0",
-    "openai": "^5.12.2"
+    "openai": "^6.15.0"
   },
   "devDependencies": {
     "@eslint/compat": "^1.3.2",