update laravel 5.7

Author: akrindev

composer.json

@@ -9,7 +9,7 @@
     ],
     "require": {
         "php" : "^5.6|^7.0",
-        "illuminate/support": "~5.1.0|~5.2.0|~5.3.0|~5.4.0|~5.5.0|~5.6.0"
+        "illuminate/support": "~5.1.0|~5.2.0|~5.3.0|~5.4.0|~5.5.0|~5.6.0|~5.7.0"
     },
     "autoload" : {
         "psr-4" : {