chore(deps): Bump oas from 2.1.1 to 3.0.0 (#151)

Bumps [oas](https://github.com/readmeio/oas/tree/HEAD/packages/cli) from 2.1.1 to 3.0.0.
- [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/v3.0.0/packages/cli)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -40,7 +40,7 @@
     "enquirer": "^2.3.0",
     "gray-matter": "^4.0.1",
     "isemail": "^3.1.3",
-    "oas": "^2.0.0",
+    "oas": "^3.0.0",
     "open": "^7.0.0",
     "read": "^1.0.7",
     "request": "^2.88.0",