Support PHP 8

Gintautas Miselis · Gintautas Miselis · commit 2927833a273f · 2020-12-18T18:14:48.000+02:00
diff --git a/composer.json b/composer.json
@@ -13,7 +13,7 @@
         }
     ],
     "require": {
-        "php": "^7.3",
+        "php": "^7.3 || ^8.0",
         "ext-dom": "*",
         "phpunit/phpunit": "^9.3"
     },
