build(deps): bump submodules/rest-api-specs from 2d4992b to `297c3a…

…0` (#4549)

Bumps [submodules/rest-api-specs](https://github.com/Azure/azure-rest-api-specs) from `2d4992b` to `297c3a0`.
- [Release notes](https://github.com/Azure/azure-rest-api-specs/releases)
- [Commits](Azure/azure-rest-api-specs@2d4992b...297c3a0)

---
updated-dependencies:
- dependency-name: submodules/rest-api-specs
  dependency-type: direct:production
...

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