The TypedPath derive macro breaks for segments with a prefix or suffix

- [X] I have looked for existing issues (including closed) about this

## Bug Report

### Version

axum v0.8.8
axum-extra v0.12.5

### Crates

axum-extra

### Description

Currently, the `typed_path` attribute macro does not support paths like `#[typed_path("/@{username}")]` and requires a manual trait implementation. 