build(deps): bump submodules/rest-api-specs from a26794f to `75fe11…

…4` (#3126)

Bumps [submodules/rest-api-specs](https://github.com/Azure/azure-rest-api-specs) from `a26794f` to `75fe114`.
- [Release notes](https://github.com/Azure/azure-rest-api-specs/releases)
- [Commits](Azure/azure-rest-api-specs@a26794f...75fe114)

---
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>