added laravel 8 support in composer.json

Author: srinathreddydudi

composer.json

@@ -11,7 +11,7 @@
   ],
   "require": {
     "php": ">=7.1.3",
-    "laravel/framework" : "~5.6.0|~5.7.0|~5.8.0|^6.0|^7.0"
+    "laravel/framework" : "~5.6.0|~5.7.0|~5.8.0|^6.0|^7.0|^8.0"
   },
   "autoload": {
     "psr-4": {
@@ -23,4 +23,4 @@
   },
   "minimum-stability": "dev",
   "prefer-stable": true
-}
+}