Update test namespaces to align with Abstract\Primitive structure and fix resource handling in PrimitiveTypeTest.

Author: georgedeploy

…t/Abstract/DateTime/DateTimeTypeTest.php …/Primitive/DateTime/DateTimeTypeTest.phptests/Unit/Abstract/DateTime/DateTimeTypeTest.php renamed to tests/Unit/Abstract/Primitive/DateTime/DateTimeTypeTest.php tests/Unit/Abstract/DateTime/DateTimeTypeTest.php renamed to tests/Unit/Abstract/Primitive/DateTime/DateTimeTypeTest.php

@@ -2,9 +2,13 @@
 
 declare(strict_types=1);
 
+namespace Abstract\Primitive;
+
 use PhpTypedValues\Abstract\Primitive\PrimitiveType;
 use PhpTypedValues\Exception\TypeException;
 
+use function is_resource;
+
 abstract readonly class PrimitiveTypeTest extends PrimitiveType
 {
     public static function convert(mixed $value): string
@@ -48,6 +52,6 @@ public function __toString(): string
         expect(fn() => PrimitiveTypeTest::convert($res))
             ->toThrow(TypeException::class, 'Value cannot be cast to string');
     } finally {
-        \is_resource($res) && fclose($res);
+        is_resource($res) && fclose($res);
     }
 });