Bump Submodule/github/rest-api-description from 9272e44 to 2a8a2c6

Bumps [Submodule/github/rest-api-description](https://github.com/github/rest-api-description) from `9272e44` to `2a8a2c6`.
- [Release notes](https://github.com/github/rest-api-description/releases)
- [Commits](github/rest-api-description@9272e44...2a8a2c6)

---
updated-dependencies:
- dependency-name: Submodule/github/rest-api-description
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]