fix: multiple guard select

[AminulBD]

When we've guards like this:

// config/auth.php
'guards' => [
        'web' => [
            'driver' => 'session',
            'provider' => 'users',
        ],
        'api' => [
            'driver' => 'sanctum',
            'provider' => 'users',
        ],
        'admin' => [
            'driver' => 'session',
            'provider' => 'admins',
        ],
        'admin-api' => [
            'driver' => 'sanctum',
            'provider' => 'admins',
        ],
    ],

and sanctum config:

// config/sanctum.php
'guard' => ['web', 'admin'],

and using middleware like this:

Route::group(['middleware' => 'auth:web,api'], ...);
Route::group(['middleware' => 'auth:admin,admin-api'], ...);

It was always pick the default web guard, and never going to correct and use the admin or admin-api guard on the scope.

So, I patched this to fix that issue and use correct guard always.

[taylorotwell]

I am closing this pull request because it lacks sufficient explanation, tests, or both. It is difficult for us to merge pull requests without these things because the change may introduce breaking changes to the framework.

Feel free to re-submit your change with a thorough explanation of the feature and tests - integration tests are preferred over unit tests. Please include it's benefit to end users; the reasons it does not break any existing features; how it makes building web applications easier, etc.

Thanks!