Update PHPUnit and Testbench (#34122)

Author: driesvints

composer.json

@@ -84,9 +84,9 @@
         "guzzlehttp/guzzle": "^6.5.5|^7.0.1",
         "league/flysystem-cached-adapter": "^1.0",
         "mockery/mockery": "^1.3.1",
-        "orchestra/testbench-core": "^6.0",
+        "orchestra/testbench-core": "^7.0",
         "pda/pheanstalk": "^4.0",
-        "phpunit/phpunit": "^8.4|^9.0",
+        "phpunit/phpunit": "^9.0",
         "predis/predis": "^1.1.1",
         "symfony/cache": "^5.1"
     },

src/Illuminate/Testing/composer.json

@@ -35,7 +35,7 @@
         "illuminate/database": "Required to assert databases (^9.0).",
         "illuminate/http": "Required to assert responses (^9.0).",
         "mockery/mockery": "Required to use mocking (^1.3.1).",
-        "phpunit/phpunit": "Required to use assertions and run tests (^8.4|^9.0)."
+        "phpunit/phpunit": "Required to use assertions and run tests (^9.0)."
     },
     "config": {
         "sort-packages": true