php8 support

tests/ZipFinderTest.php

@@ -1,5 +1,14 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * This file is part of the nelexa/zip package.
+ * (c) Ne-Lexa <https://github.com/Ne-Lexa/php-zip>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace PhpZip\Tests;
 
 use PhpZip\Constants\ZipCompressionMethod;
@@ -18,7 +27,7 @@ class ZipFinderTest extends ZipTestCase
     /**
      * @throws ZipException
      */
-    public function testFinder()
+    public function testFinder(): void
     {
         $finder = (new Finder())
             ->files()