Update composer.json

Author: davitbek

composer.json

@@ -9,12 +9,12 @@
 		}
 	],
 	"require": {
-		"laravel/framework": "5.5.*",
+		"laravel/framework": "5.6.*",
 		"omnicode/php-util": "0.0.*"
 	},
 	"require-dev": {
 		"mockery/mockery": "~1.0",
-		"phpunit/phpunit": "~6.0",
+		"phpunit/phpunit": "~7.0",
 		"omnicode/lara-test": "~0.0",
 		"orchestra/testbench": "~3.0"