[Feature] Integration Testing

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Description

Is there a way to run integration tests for a worker? I'd like to be able to do something similar to:

```(rust)
async fn health_check_works() {
// Arrange
let worker = spawn_worker().await;
let client = reqwest::Client::new();

// Act
let response = client
.get(&format!("{}/health_check", &worker.address))
.send()
.await
.expect("Failed to execute request.");

// Assert
assert!(response.status().is_success());
assert_eq!(Some(0), response.content_length());
}
```