Updating php-cs-fixer to use PSR12 and latest version (#121)

Author: Hackwar

.php-cs-fixer.dist.php

@@ -0,0 +1,20 @@
+<?php
+
+$mainFinder = PhpCsFixer\Finder::create()
+	->in(
+		[
+			__DIR__ . '/bin',
+			__DIR__ . '/src',
+			__DIR__ . '/www',
+		]
+	);
+
+$config = new PhpCsFixer\Config();
+return $config->setRules(
+		[
+		'@PSR12' => true,
+        'array_syntax' => ['syntax' => 'short'],
+		]
+	)
+	->setRiskyAllowed(true)
+	->setFinder($mainFinder);

.php_cs

@@ -4,7 +4,7 @@
     "homepage": "http://github.com/joomla/framework.joomla.org",
     "license": "GPL-2.0-or-later",
     "require": {
-        "php": "^7.2",
+        "php": "^7.4",
         "ext-json": "*",
         "ext-pdo": "*",
         "fig/link-util": "^1.1",
@@ -41,7 +41,7 @@
         "twig/twig": "^3.0"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^2.16.4",
+        "friendsofphp/php-cs-fixer": "^3.13.2",
         "squizlabs/php_codesniffer": "~3.0",
         "maximebf/debugbar": "^1.16.3"
     },
@@ -57,7 +57,7 @@
     },
     "config": {
         "platform": {
-            "php": "7.2.21"
+            "php": "7.4.0"
         }
     }
 }