use Macroable (#51572)

Author: PerryvanderMeer

src/Illuminate/Testing/PendingCommand.php

@@ -9,6 +9,7 @@
 use Illuminate\Contracts\Support\Arrayable;
 use Illuminate\Support\Arr;
 use Illuminate\Support\Traits\Conditionable;
+use Illuminate\Support\Traits\Macroable;
 use Mockery;
 use Mockery\Exception\NoMatchingExpectationException;
 use PHPUnit\Framework\TestCase as PHPUnitTestCase;
@@ -20,6 +21,7 @@
 class PendingCommand
 {
     use Conditionable;
+    use Macroable;
 
     /**
      * The test being run.