Merge pull request #510 from DawidVH/composer-patch

Set max phpunit version

Author: DawidVH

composer.json

@@ -23,7 +23,7 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": ">=5.7",
+        "phpunit/phpunit": ">=5.7 <=9.5.28",
         "squizlabs/php_codesniffer": "3.*",
         "fzaninotto/faker": "^1.4"
     }