Dropped dependency on phpunit wrapper

Int was only necessary for PHPUnit7 support

Author: Naktibalda

composer.json

@@ -10,7 +10,6 @@
         }
     },
     "require": {
-        "codeception/phpunit-wrapper": "^8.0.4",
         "phpunit/phpunit": "^8.4"
     }
 }

tests/StubTest.php

@@ -2,15 +2,15 @@
 require_once __DIR__ .'/ResetMocks.php';
 use Codeception\Stub;
 
-class StubTest extends \Codeception\PHPUnit\TestCase
+class StubTest extends \PHPUnit\Framework\TestCase
 {
     use ResetMocks;
     /**
      * @var DummyClass
      */
     protected $dummy;
 
-    public function _setUp()
+    public function setUp(): void
     {
         require_once $file = __DIR__. '/_data/DummyOverloadableClass.php';
         require_once $file = __DIR__. '/_data/DummyClass.php';

tests/StubTraitTest.php

@@ -1,7 +1,7 @@
 <?php
 require_once __DIR__ .'/ResetMocks.php';
 
-class StubTraitTest extends \Codeception\PHPUnit\TestCase
+class StubTraitTest extends \PHPUnit\Framework\TestCase
 {
     use ResetMocks;
     use \Codeception\Test\Feature\Stub;
@@ -10,7 +10,7 @@ class StubTraitTest extends \Codeception\PHPUnit\TestCase
      */
     protected $dummy;
 
-    public function _setUp()
+    public function setUp(): void
     {
         require_once $file = __DIR__. '/_data/DummyOverloadableClass.php';
         require_once $file = __DIR__. '/_data/DummyClass.php';