[shopsys] hotfix: locked php-cs-fixer in version lower than 3.50 as new version causes errors in tests with current easy-coding-standards (#3042)

Author: TomasLudvik

composer.json

@@ -26,6 +26,9 @@
         "phpunit/phpunit": "^9.5.20",
         "nikic/php-parser": "^4.0"
     },
+    "conflict": {
+        "friendsofphp/php-cs-fixer": ">=3.50.0"
+    },
     "autoload": {
         "psr-4": {
             "Shopsys\\CodingStandards\\": "src/"