Added Symfony 8 support to all symfony/* packages. (#57)

Author: thecaliskan

composer.json

@@ -20,8 +20,8 @@
         "php": "^7.2|^8.0",
         "illuminate/support": "^6.0|^7.0|^8.0|^9.0|^10.0|^11.0|^12.0",
         "illuminate/http": "^6.0|^7.0|^8.0|^9.0|^10.0|^11.0|^12.0",
-        "symfony/dom-crawler": "^4.0|^5.0|^6.0|^7.0",
-        "symfony/css-selector": "^4.0|^5.0|^6.0|^7.0"
+        "symfony/dom-crawler": "^4.0|^5.0|^6.0|^7.0|^8.0",
+        "symfony/css-selector": "^4.0|^5.0|^6.0|^7.0|^8.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^8.0|^9.0|^10.5|^11.0"