Update composer.json

Added v7 laravel support

Author: Daniel

composer.json

@@ -13,7 +13,7 @@
     "license": "MIT",
     "require": {
         "php": "^7.1",
-        "illuminate/support": "^5.7.15 | 5.8.* | ^6.0"
+        "illuminate/support": "^5.7.15 | 5.8.* | ^6.0 | ^7.0"
     },
     "autoload": {
         "psr-4": {