Bump jane-php/open-api-2 from 7.7.0 to 7.8.1

Bumps [jane-php/open-api-2](https://github.com/janephp/open-api-2) from 7.7.0 to 7.8.1.
- [Commits](janephp/open-api-2@v7.7.0...v7.8.1)

---
updated-dependencies:
- dependency-name: jane-php/open-api-2
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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