Minor changes

Author: endroid

src/Twig/Extension/EmbedExtension.php

@@ -7,7 +7,7 @@
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFunction;
 
-class EmbedExtension extends AbstractExtension
+final class EmbedExtension extends AbstractExtension
 {
     public function getFunctions(): array
     {

tests/Twig/Extension/EmbedExtensionTest.php

@@ -6,9 +6,9 @@
 
 use PHPUnit\Framework\TestCase;
 
-class EmbedExtensionTest extends TestCase
+final class EmbedExtensionTest extends TestCase
 {
-    public function testNoTestsYet()
+    public function testNoTestsYet(): void
     {
         $this->assertTrue(true);
     }