cs: Switch to a stricter way of coding - this might break in a lot of places.

src/Bundle/ChillMainBundle/Tests/Search/Utils/ExtractPhonenumberFromPatternTest.php

@@ -7,6 +7,15 @@
  * the LICENSE file that was distributed with this source code.
  */
 
+declare(strict_types=1);
+
+/**
+ * Chill is a software for social workers.
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
 namespace Search\Utils;
 
 use Chill\MainBundle\Search\Utils\ExtractPhonenumberFromPattern;
@@ -16,7 +25,7 @@ use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
  * @internal
  * @coversNothing
  */
-class ExtractPhonenumberFromPatternTest extends KernelTestCase
+final class ExtractPhonenumberFromPatternTest extends KernelTestCase
 {
     public function provideData()
     {