Update orchestra/testbench, remove Lumen dev-dependency

Author: jeromegamez

composer.json

@@ -18,8 +18,7 @@
         "symfony/cache": "^5.4|^6.0"
     },
     "require-dev": {
-        "orchestra/testbench": "^6.0",
-        "laravel/lumen-framework": "^8.3",
+        "orchestra/testbench": "^6.0 || 7.0",
         "symplify/easy-coding-standard": "^10.0"
     },
     "autoload": {