subsecond: simple test does not work when async

**Problem**

Minimum test to understand how to use subsecond.
Works without tokio and async and does nothing (no error) when async is involved

**Steps To Reproduce**

Steps to reproduce the behavior:

- run dx serve --hot-patch
- See the line "Hello" being print over and over again
- change the string to "Hello World!" in the get_response function
- See the hot patching log from the dx cli
- Nothing change the line is still just "Hello"

Code :
```rust
// Import the dioxus_devtools crate for hot-reload and devtools integration.
use dioxus_devtools::connect_subsecond;

// Entry point of the application.
#[tokio::main]
async fn main() {
// Initialize the dioxus_devtools for hot-reloading.
connect_subsecond();

// Start the main application loop.
run_application().await;
}

// Main application loop that runs indefinitely.
async fn run_application() {
loop {
// Call the get_response function through subsecond::call to enable hot-reloading.
let greeting = subsecond::call(get_response).await;

// Print the result to the console.
println!("{greeting}");

// Sleep for 10 seconds before repeating.
tokio::time::sleep(std::time::Duration::from_secs(10)).await;
}
}

// Function that returns a greeting string.
// This function can be hot-reloaded at runtime.
async fn get_response() -> String {
"Hello World!".to_string()
}
```

```toml
[dependencies]
dioxus-devtools = "0.7.0-alpha.1"
subsecond = "0.7.0-alpha.1"
tokio = { version = "1.45.1", features = ["full"] }
```

Same code without tokio and async works

**Expected behavior**

- run dx serve --hot-patch
- See the line "Hello" being print over and over again
- change the string to "Hello World!" in the get response method
- See the hot patching log from the dx cli
- The line now prints "Hello World!"

**Screenshots**


**Environment:**

- Dioxus version: dioxus 0.7.0-alpha.1 (662cf0d)
- Rust version: 1.87.0
- OS info: Windows 11
- App platform: None, just trying out subsecond

**Questionnaire**
I'm interested in fixing this myself but don't know where to start.