[Bug]: Setting auth middleware in the controller stops use with multiple guards

```php
// src/Controllers/ImpersonateController.php

public function __construct()
{
$this->manager = app()->make(ImpersonateManager::class);

$guard = $this->manager->getDefaultSessionGuard();
$this->middleware('auth:' . $guard)->only('take');
}
```

While it's important to encourage security, this forced middleware in the constructor means that if you're using this package for impersonating anything other than the default guard, it won't work since it'll just redirect to login.