Bump ring from 0.17.8 to 0.17.13 in /tests/hello-rustls (#323)

Bumps [ring](https://github.com/briansmith/ring) from 0.17.8 to 0.17.13.
- [Changelog](https://github.com/briansmith/ring/blob/main/RELEASES.md)
- [Commits](https://github.com/briansmith/ring/commits)

---
updated-dependencies:
- dependency-name: ring
  dependency-type: indirect
...

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

Author: dependabot[bot]