chore(deps-dev): bump openapi-backend from 5.16.1 to 5.17.0 (#6619)

Bumps [openapi-backend](https://github.com/openapistack/openapi-backend) from 5.16.1 to 5.17.0.
- [Release notes](https://github.com/openapistack/openapi-backend/releases)
- [Commits](openapistack/openapi-backend@5.16.1...5.17.0)

---
updated-dependencies:
- dependency-name: openapi-backend
  dependency-version: 5.17.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]