Bump testbench and phpunit versions

Author: crezra

composer.json

@@ -23,8 +23,8 @@
         "illuminate/support": "^7.0|^8.0|^9.0"
     },
     "require-dev": {
-        "orchestra/testbench": "^6.12",
-        "phpunit/phpunit": "^8.0",
+        "orchestra/testbench": "^6.12|^7.1",
+        "phpunit/phpunit": "^8.0|^9.5",
         "spatie/phpunit-snapshot-assertions": "^4.2"
     },
     "autoload": {