deps(identity): bump ring to v0.17.5

[thomaseizinger]

Description

The libp2p-identity crate is a dependency of the entire ecosystem. We should keep its dependencies up to date as much as possible. At the moment, we can't bump ring across the entire workspace because we still need releases of rustls that update to the new ring version. Not all our users depend in libp2p-tls or libp2p-quic though. For those users, a bump in libp2p-identity will be useful.

Notes & open questions

Change checklist

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• A changelog entry has been made in the appropriate crates

[mxinden]

Thanks!