chore: temporary fix for PhpCoveralls error

php-coveralls/php-coveralls#327

Author: kenjis

composer.json

@@ -15,6 +15,7 @@
         "psr/log": "^1.1"
     },
     "require-dev": {
+        "symfony/console": "< 6.0",
         "codeigniter/coding-standard": "^1.1",
         "fakerphp/faker": "^1.9",
         "friendsofphp/php-cs-fixer": "^3.1",