Bump openapi-typescript from 6.3.2 to 6.7.1 (#138)

Bumps [openapi-typescript](https://github.com/drwpow/openapi-typescript/tree/HEAD/packages/openapi-typescript) from 6.3.2 to 6.7.1.
- [Release notes](https://github.com/drwpow/openapi-typescript/releases)
- [Changelog](https://github.com/drwpow/openapi-typescript/blob/openapi-typescript@6.7.1/packages/openapi-typescript/CHANGELOG.md)
- [Commits](https://github.com/drwpow/openapi-typescript/commits/openapi-typescript@6.7.1/packages/openapi-typescript)
---
updated-dependencies:
- dependency-name: openapi-typescript
  dependency-type: direct:development
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]