Update Rector\Core sub namespace to Rector

Author: samsonasik

src/Template/rector.php

@@ -21,7 +21,7 @@
 use Rector\CodingStyle\Rector\ClassMethod\MakeInheritedMethodVisibilitySameAsParentRector;
 use Rector\CodingStyle\Rector\FuncCall\CountArrayToEmptyArrayComparisonRector;
 use Rector\Config\RectorConfig;
-use Rector\Core\ValueObject\PhpVersion;
+use Rector\ValueObject\PhpVersion;
 use Rector\DeadCode\Rector\ClassMethod\RemoveUnusedPromotedPropertyRector;
 use Rector\EarlyReturn\Rector\Foreach_\ChangeNestedForeachIfsToEarlyContinueRector;
 use Rector\EarlyReturn\Rector\If_\ChangeIfElseValueAssignToEarlyReturnRector;