build: upd deps

Author: Gemorroj

composer.json

@@ -7,16 +7,16 @@
         "php": ">=8.0.2",
         "ext-dom": "*",
         "ext-libxml": "*",
-        "symfony/http-client": "^5.4||^6.0||^7.0"
+        "symfony/http-client": "^5.4||^6.4||^7.0"
     },
     "authors": [
         {
             "name": "Gemorroj"
         }
     ],
     "require-dev": {
-        "phpunit/phpunit": "^9.6",
-        "friendsofphp/php-cs-fixer": "^3.68"
+        "phpunit/phpunit": "^9.6.22",
+        "friendsofphp/php-cs-fixer": "^3.68.5"
     },
     "autoload": {
         "psr-4": {

src/CSSValidator.php

@@ -22,7 +22,7 @@ class CSSValidator
     private Options $options;
     private HttpClientInterface $httpClient;
 
-    public function __construct(Options $options = null, HttpClientInterface $httpClient = null)
+    public function __construct(?Options $options = null, ?HttpClientInterface $httpClient = null)
     {
         $this->options = $options ?: new Options();
         if (!$httpClient) {