add php 8

Author: cznec

composer.json

@@ -1,5 +1,5 @@
 {
-    "name": "paquettg/php-html-parser",
+    "name": "cznec/php-html-parser",
     "type": "library",
     "description": "An HTML DOM parser. It allows you to manipulate HTML. Find tags on an HTML page with selectors just like jQuery.",
     "keywords": ["html", "dom", "parser"],
@@ -13,7 +13,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.2|>=8",
         "ext-mbstring": "*",
         "ext-zlib": "*",
         "ext-curl": "*",
@@ -23,15 +23,9 @@
         "guzzlehttp/psr7": "^1.6",
         "myclabs/php-enum": "^1.7"
     },
-    "require-dev": {
-        "phpunit/phpunit": "^7.5.1",
-        "mockery/mockery": "^1.2",
-        "infection/infection": "^0.13.4",
-        "phan/phan": "^2.4",
-        "friendsofphp/php-cs-fixer": "^2.16"
-    },
+    "require-dev": {},
     "autoload": {
-        "psr-4": { 
+        "psr-4": {
         	"PHPHtmlParser\\": "src/PHPHtmlParser"
        	}
     }