chore(deps): bump oas from 3.5.0 to 3.5.4 (#222)

Bumps [oas](https://github.com/readmeio/oas/tree/HEAD/packages/cli) from 3.5.0 to 3.5.4.
- [Release notes](https://github.com/readmeio/oas/releases)
- [Changelog](https://github.com/readmeio/oas/blob/master/CHANGELOG.md)
- [Commits](https://github.com/readmeio/oas/commits/v3.5.4/packages/cli)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]