php8 support

tests/Internal/Epub/EpubReader.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\Internal\Epub;
 
 use PhpZip\IO\ZipReader;
@@ -10,11 +19,9 @@ use PhpZip\IO\ZipReader;
 class EpubReader extends ZipReader
 {
     /**
-     * @return bool
-     *
      * @see https://github.com/w3c/epubcheck/issues/334
      */
-    protected function isZip64Support()
+    protected function isZip64Support(): bool
     {
         return false;
     }