Bumping workos-PHP version to ^1.6.0 in composer (#23)

Author: adamzinder

composer.json

@@ -20,7 +20,7 @@
   "require": {
     "php": ">=5.6.0",
     "illuminate/support": "^5.0 || ^6.0 || ^7.0 || ^8.0",
-    "workos/workos-php": "1.6.0"
+    "workos/workos-php": "^1.6.0"
   },
   "require-dev": {
     "friendsofphp/php-cs-fixer": "^2.15",