Fix dependency error for Laravel 5.8

Author: srmklive

composer.json

@@ -6,7 +6,7 @@
   "license": "MIT",
   "require": {
     "guzzlehttp/guzzle": "~6.0",
-    "nesbot/carbon": "~1.2",
+    "nesbot/carbon": "~1.2|~2.0",
     "illuminate/support": "~5.1|~5.2|~5.3|~5.4|~5.5|~5.6|~5.7|~5.8"
   },
   "extra": {