Upgrade aplus/coding-standard to ^3.0

Author: natanfelles

composer.json

@@ -45,7 +45,7 @@
     },
     "require-dev": {
         "ext-xdebug": "*",
-        "aplus/coding-standard": "^2.8",
+        "aplus/coding-standard": "^3.0",
         "ergebnis/composer-normalize": "^2.25",
         "jetbrains/phpstorm-attributes": "^1.0",
         "phpmd/phpmd": "^2.13",