build: testbench 8

Author: yajra

composer.json

@@ -22,8 +22,8 @@
   },
   "require-dev": {
     "maatwebsite/excel": "^3.1.40",
-    "nunomaduro/larastan": "2.1.*",
-    "orchestra/testbench": "^7.3",
+    "nunomaduro/larastan": "^2.4",
+    "orchestra/testbench": "^8",
     "rap2hpoutre/fast-excel": "^3.2",
     "barryvdh/laravel-snappy": "^1.0"
   },