Upgrade proxy crates to edition 2024 (#10942)

This upgrades the `proxy/` crate as well as the forked libraries in
`libs/proxy/` to edition 2024.

Also reformats the imports of those forked libraries via:

```
cargo +nightly fmt -p proxy -p postgres-protocol2 -p postgres-types2 -p tokio-postgres2 -- -l --config imports_granularity=Module,group_imports=StdExternalCrate,reorder_imports=true
```

It can be read commit-by-commit: the first commit has no formatting
changes, only changes to accomodate the new edition.

Part of #10918

proxy/src/control_plane/mod.rs

@@ -11,9 +11,9 @@ pub(crate) mod errors;
 
 use std::sync::Arc;
 
+use crate::auth::IpPattern;
 use crate::auth::backend::jwt::AuthRule;
 use crate::auth::backend::{ComputeCredentialKeys, ComputeUserInfo};
-use crate::auth::IpPattern;
 use crate::cache::project_info::ProjectInfoCacheImpl;
 use crate::cache::{Cached, TimedLru};
 use crate::config::ComputeConfig;