[CodeQuality] Skip return createMock() on TypeWillReturnCallableArrowFunctionRector

[samsonasik]

@TomasVotruba I tested in our project, this cause diff:

1) Rector\PHPUnit\Tests\CodeQuality\Rector\Class_\TypeWillReturnCallableArrowFunctionRector\TypeWillReturnCallableArrowFunctionRectorTest::test with data set #3 ('/Users/samsonasik/www/rector-...hp.inc')
Failed on fixture file "skip_return_create_mock.php.inc"
Failed asserting that string matches format description.
--- Expected
+++ Actual
@@ @@
         $form = $this->createMock(FormInterface::class);
 
         $form->method('add')
-            ->willReturnCallback(function ($name, $type, $options) use (&$calls) {
+            ->willReturnCallback(function ($name, $type, $options) use (&$calls): static {
                  $calls[] = compact('name', 'type', 'options');
                  return $this->createMock(FormInterface::class);
              });

which cause error:

There was 1 error:

Return value must be of type SomeTest, MockObject_FormInterface_afa3944a returned

[samsonasik]

Fixed 🎉 /cc @TomasVotruba

[samsonasik]

All checks have passed 🎉 @TomasVotruba I am merging it to have faster feedback to test ;)

[samsonasik]

For note: MockObject return already covered by ClosureReturnTypeRector so this skip is on purpose.

[TomasVotruba]

Looks good 👌