Adhere to coding standard

Couple small changes in whitespaces.

Author: rdohms

src/ArrayAccessible.php

@@ -1,4 +1,5 @@
 <?php
+
 declare(strict_types=1);
 
 namespace DMS\PHPUnitExtensions\ArraySubset;

src/ArraySubsetAsserts.php

@@ -1,4 +1,5 @@
 <?php
+
 declare(strict_types=1);
 
 namespace DMS\PHPUnitExtensions\ArraySubset;

src/Assert.php

@@ -1,4 +1,5 @@
 <?php
+
 declare(strict_types=1);
 
 namespace DMS\PHPUnitExtensions\ArraySubset;

src/Constraint/ArraySubset.php

@@ -1,4 +1,5 @@
 <?php
+
 declare(strict_types=1);
 
 namespace DMS\PHPUnitExtensions\ArraySubset\Constraint;

tests/Unit/AssertTest.php

@@ -1,4 +1,5 @@
 <?php
+
 declare(strict_types=1);
 
 namespace DMS\PHPUnitExtensions\ArraySubset\Tests\Unit;

tests/Unit/Constraint/ArraySubsetTest.php

@@ -1,4 +1,5 @@
 <?php
+
 declare(strict_types=1);
 
 namespace DMS\PHPUnitExtensions\ArraySubset\Tests\Unit\Constraint;