Tests: Use new authenticatedAs option where useful

There are two more API integration tests that explicitly add the
"Authorization" header right now:

- `Flarum\Tests\integration\api\authentication\WithApiKeyTest`
- `Flarum\Tests\integration\api\csrf_protection\RequireCsrfTokenTest`

These two specifically test authentication, so in those cases the
explicitness seems desirable.

framework/core/tests/integration/api/notifications/ListTest.php

@@ -24,9 +24,6 @@ class ListTest extends TestCase
             'users' => [
                 $this->normalUser(),
             ],
-            'access_tokens' => [
-                ['token' => 'normaltoken', 'user_id' => 2],
-            ],
         ]);
     }
 
@@ -48,8 +45,9 @@ class ListTest extends TestCase
     public function shows_index_for_user()
     {
         $response = $this->send(
-            $this->request('GET', '/api/notifications')
+            $this->request('GET', '/api/notifications', [
-                ->withHeader('Authorization', 'Token normaltoken')
+                'authenticatedAs' => 2,
+            ])
         );
 
         $this->assertEquals(200, $response->getStatusCode());

framework/core/tests/integration/api/users/CreationTest.php

@@ -35,9 +35,6 @@ class CreationTest extends TestCase
             'settings' => [
                 ['key' => 'mail_driver', 'value' => 'log'],
             ],
-            'access_tokens' => [
-                ['token' => 'admintoken', 'user_id' => 1],
-            ],
         ]);
     }
 
@@ -128,6 +125,7 @@ class CreationTest extends TestCase
                 'POST',
                 '/api/users',
                 [
+                    'authenticatedAs' => 1,
                     'json' => [
                         'data' => [
                             'attributes' => [
@@ -139,7 +137,7 @@ class CreationTest extends TestCase
                         ]
                     ],
                 ]
-            )->withHeader('Authorization', 'Token admintoken')
+            )
         );
 
         $this->assertEquals(201, $response->getStatusCode());

framework/core/tests/integration/api/users/ListTest.php

@@ -33,9 +33,6 @@ class ListTest extends TestCase
             'group_user' => [
                 ['user_id' => 1, 'group_id' => 1],
             ],
-            'access_tokens' => [
-                ['token' => 'admintoken', 'user_id' => 1],
-            ],
         ]);
     }
 
@@ -76,8 +73,9 @@ class ListTest extends TestCase
     public function shows_index_for_admin()
     {
         $response = $this->send(
-            $this->request('GET', '/api/users')
+            $this->request('GET', '/api/users', [
-                ->withHeader('Authorization', 'Token admintoken')
+                'authenticatedAs' => 1,
+            ])
         );
 
         $this->assertEquals(200, $response->getStatusCode());