chore: move hyper to a newer MSRV

[dougch]

Release Summary:

Resolved issues:

#4971 and https://github.com/aws/s2n-tls/security/dependabot/1

Description of changes:

Due to hyper dependencies, move it out of our bindings workspace to allow for a newer Rust version and security updates.

Final directory structure, with a different MSRV for extneded, standard and rust-examples.

├── rust
│   ├── certs
│   ├── extended
│   │   ├── certs -> ../certs
│   │   ├── generate
│   │   ├── s2n-tls
│   │   ├── s2n-tls-sys
│   │   ├── s2n-tls-tokio
│   │   └── target
│   └── standard
│       ├── bench
│       ├── certs -> ../certs
│       ├── integration
│       ├── s2n-tls-hyper
│       └── target
└── rust-examples
    ├── certs
    ├── client-hello-config-resolution
    │   └── src
    ├── target
    │   └── debug
    └── tokio-server-client
        └── src

Call-outs:

This PR is going the refactor-all-the-things approach, many of the files are unchanged, but path depth is growing by one, across the board.

The regression test GHA will fail, because a path change breaks the flip back to the main branch, this will need an over-ride or a limited-time not required change.

Followups

• Clippy for standard
• MSRV, rustfmt, asan check for the standard workspace
• Regression GHA

Testing:

This PR is tested by Rust bindings CI.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[boquan-fang]

Could you put the testing result in the Testing: section in the PR description? I think that part is missing. I think it's helpful to ping test results for a PR involves structure changes.

[boquan-fang]

Testing has been updated.

[goatgoose]

For the followup list: I think we'll also want rustfmt and asan running in the standard workspace.