Updated dev dependencies

.gitignore

@@ -2,4 +2,4 @@ vendor/
 bin/
 composer.lock
 .vagrant
-/.php_cs.cache
+/.php-cs-fixer.cache

.php_cs → .php-cs-fixer.php

@@ -8,11 +8,11 @@
     ->notPath('/fixtures/')
 ;
 
-return \PhpCsFixer\Config::create()
+$config = new \PhpCsFixer\Config();
+return $config
     ->setRules([
         '@Symfony'                    => true,
         '@Symfony:risky'              => true,
-        '@PHP56Migration'             => true,
         '@PHP56Migration:risky'       => true,
         '@PHP70Migration'             => true,
         '@PHP70Migration:risky'       => true,

composer.json

@@ -6,7 +6,10 @@
     "config": {
         "optimize-autoloader": true,
         "sort-packages": true,
-        "preferred-install": "dist"
+        "preferred-install": "dist",
+        "allow-plugins": {
+            "infection/extension-installer": true
+        }
     },
     "minimum-stability": "dev",
     "prefer-stable": true,
@@ -40,12 +43,12 @@
         "php-http/httplug-bundle": "For integration with Symfony"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^2.17",
-        "infection/infection": "^0.21.5 || ^0.24.0",
+        "friendsofphp/php-cs-fixer": "^3.8",
+        "infection/infection": "^0.26",
         "php-parallel-lint/php-parallel-lint": "^1.2",
-        "phpstan/phpstan": "^0.12.58",
+        "phpstan/phpstan": "^1.0",
         "phpunit/phpunit": "^9.5",
-        "psy/psysh": "^0.10.5",
+        "psy/psysh": "^0.11",
         "roave/security-advisories": "dev-master",
         "squizlabs/php_codesniffer": "^3.5",
         "vimeo/psalm": "^4.3"