Bump node-fetch and swagger2openapi

Bumps [node-fetch](https://github.com/node-fetch/node-fetch) to 2.7.0 and updates ancestor dependency [swagger2openapi](https://github.com/Mermade/oas-kit). These dependencies need to be updated together.


Updates `node-fetch` from 1.7.3 to 2.7.0
- [Release notes](https://github.com/node-fetch/node-fetch/releases)
- [Commits](node-fetch/node-fetch@1.7.3...v2.7.0)

Updates `swagger2openapi` from 2.9.4 to 2.11.16
- [Release notes](https://github.com/Mermade/oas-kit/releases)
- [Changelog](https://github.com/Mermade/oas-kit/blob/main/CHANGELOG.md)
- [Commits](Mermade/oas-kit@v2.9.4...v2.11.16)

---
updated-dependencies:
- dependency-name: node-fetch
  dependency-type: indirect
- dependency-name: swagger2openapi
  dependency-type: direct:production
...

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