Experimental support for Carbon 1

Author: Jord-JD

composer.json

@@ -13,7 +13,7 @@
         "php": ">=7.1",
         "league/flysystem": "^1.0",
         "divineomega/php-cli-progress-bar": "^2.0",
-        "nesbot/carbon": "^2.27"
+        "nesbot/carbon": "^1.0||^2.27"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.0||^8.0",