Bump openai from 4.104.0 to 6.7.0

Bumps [openai](https://github.com/openai/openai-node) from 4.104.0 to 6.7.0.
- [Release notes](https://github.com/openai/openai-node/releases)
- [Changelog](https://github.com/openai/openai-node/blob/master/CHANGELOG.md)
- [Commits](openai/openai-node@v4.104.0...v6.7.0)

---
updated-dependencies:
- dependency-name: openai
  dependency-version: 6.7.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -28,7 +28,7 @@
   "dependencies": {
     "@slack/bolt": "^4.5.0",
     "dotenv": "~17.2.3",
-    "openai": "^4.104.0"
+    "openai": "^6.8.1"
   },
   "devDependencies": {
     "@biomejs/biome": "2.2.4",