Update composer.json

Author: dmitry-semenov

composer.json

@@ -15,11 +15,11 @@
       }
     ],
     "require": {
-      "yii2mod/yii2-enum": "dev-master"
+      "yii2mod/yii2-enum": ">=1.1"
     },
     "autoload": {
       "psr-4": {
         "yii2mod\\cron\\": ""
       }
     }
-}
+}