Add jetbrains attrib dev package

Author: uuf6429

composer.json

@@ -30,7 +30,8 @@
         "phpstan/phpstan": "^1.10",
         "phpstan/phpstan-phpunit": "^1.3",
         "phpstan/phpstan-symfony": "^1.3",
-        "symfony/http-kernel": "^4.4 || ^5.0 || ^6.0 || ^7.0 || ^8.0"
+        "symfony/http-kernel": "^4.4 || ^5.0 || ^6.0 || ^7.0 || ^8.0",
+        "jetbrains/phpstorm-attributes": "^1.2"
     },
     "conflict": {
         "symfony/http-foundation": "<4.4 || >=9",