website: bump openapi-to-postmanv2 from 5.8.0 to 6.0.0 in /website (#20910)

Bumps [openapi-to-postmanv2](https://github.com/postmanlabs/openapi-to-postman) from 5.8.0 to 6.0.0.
- [Release notes](https://github.com/postmanlabs/openapi-to-postman/releases)
- [Changelog](https://github.com/postmanlabs/openapi-to-postman/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/postmanlabs/openapi-to-postman/compare/v5.8.0...v6.0.0)

---
updated-dependencies:
- dependency-name: openapi-to-postmanv2
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

website/api/package.json

@@ -39,7 +39,7 @@
         "docusaurus-plugin-openapi-docs": "^4.5.1",
         "docusaurus-theme-openapi-docs": "^4.5.1",
         "npm-run-all": "^4.1.5",
-        "openapi-to-postmanv2": "^5.0.0",
+        "openapi-to-postmanv2": "^6.0.0",
         "postman-code-generators": "^2.1.0",
         "postman-collection": "^5.0.2",
         "prism-react-renderer": "^2.4.1",