pip(deps): bump openapi-schema-validator from 0.5.0 to 0.6.0

Bumps [openapi-schema-validator](https://github.com/python-openapi/openapi-schema-validator) from 0.5.0 to 0.6.0.
- [Release notes](https://github.com/python-openapi/openapi-schema-validator/releases)
- [Commits](python-openapi/openapi-schema-validator@0.5.0...0.6.0)

---
updated-dependencies:
- dependency-name: openapi-schema-validator
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]