Restart application gives HttpSysException The prefix is already registered

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Describe the bug

I would like to start and stop our application on demand, without exiting the process. Code would be similar like:

```
var builder = WebApplication.CreateBuilder(args);

builder.WebHost.UseHttpSys();
builder.Services.AddControllers();

var app = builder.Build();

await app.StartAsync();
await app.StopAsync();

// Something here

await app.StartAsync();
```

However, with http.sys this gives an exception: `Microsoft.AspNetCore.Server.HttpSys.HttpSysException: 'The prefix 'http://localhost:5074/' is already registered.'`.

Minimum testcase: [WebApplication2.zip](https://github.com/user-attachments/files/18603722/WebApplication2.zip)

Is there any way to restart the app or a workaround to make this work?

### Expected Behavior

_No response_

### Steps To Reproduce

_No response_

### Exceptions (if any)

_No response_

### .NET Version

9.0.102

### Anything else?

_No response_