update to Testbench v7 & composer update

Author: vicgonvt

composer.json

@@ -10,10 +10,10 @@
     ],
     "require": {
         "ext-json": "*",
-        "php": "^7.2|^8.0"
+        "php": "^8.0"
     },
     "require-dev": {
-        "orchestra/testbench": "^5.0"
+        "orchestra/testbench": "^7.0"
     },
     "autoload": {
         "psr-4" : {