fix: #17 Laravel Zero install failed

Author: shaunthegeek

composer.json

@@ -30,7 +30,7 @@
     "minimum-stability": "stable",
     "require": {
         "ext-json": "*",
-        "laravel/framework": ">=v6.18.38",
+        "illuminate/support": ">=v6.20.36",
         "phpmd/phpmd": "^2.10",
         "squizlabs/php_codesniffer": "^3.5"
     },