fix failed CI jobs - new attempt at upgrading Larastan

Author: leob

composer.json

@@ -28,8 +28,7 @@
     },
     "require-dev": {
         "mockery/mockery": "^1.2",
-        "nunomaduro/larastan": "^0.7",
-        "orchestra/testbench": "^6.9",
+        "nunomaduro/larastan": "^2.2",
         "pestphp/pest": "^1.0",
         "phpunit/phpunit": "^8.0|^9.0"
     },