chore: update packages to be laravel 9/php 8 compatible

Author: RobJenkinson

composer.json

@@ -10,10 +10,10 @@
         }
     ],
     "require": {
-		"php": "^7.0",
+		"php": "^8.0",
      	"guzzlehttp/guzzle": ">=1.16.0",
         "laravel/framework": ">=1.15.5",
-        "laravel/passport": "^4.0|^5.0|^6.0|^7.0|^8.0"
+        "laravel/passport": "^4.0|^5.0|^6.0|^7.0|^8.0|^9.0"
     },
     "autoload": {
         "psr-4": {"DesignMyNight\\Laravel\\OAuth2\\": "src/"}