fix tests without assertions

tests/AuthTest.php

@@ -28,6 +28,7 @@ class AuthTest extends TestCase
     public function testRemindOld()
     {
         if (Application::VERSION >= '5.2') {
+            $this->expectNotToPerformAssertions();
             return;
         }
 

tests/SchemaTest.php

@@ -300,6 +300,7 @@ class SchemaTest extends TestCase
             $collection->boolean('activated')->default(0);
             $collection->integer('user_id')->unsigned();
         });
+        $this->expectNotToPerformAssertions();
     }
 
     public function testSparseUnique(): void