Update composer.json

Author: samueljohnw

composer.json

@@ -4,7 +4,7 @@
     "keywords": ["laravel", "preset", "zurb-foundation", "foundation"],
     "license": "MIT",
     "require": {
-        "laravel/framework": "^5.5|^6.0"
+        "laravel/framework": "^5.5|^7.0"
     },
     "autoload": {
         "psr-4": {