Update orchestra/testbench to version 9.6.1

Author: depfu[bot]

composer.json

@@ -27,7 +27,7 @@
         "nunomaduro/collision": "^6.0",
         "nunomaduro/larastan": "^2.0.1",
         "nunomaduro/phpinsights": "^2.4",
-        "orchestra/testbench": "^7.0",
+        "orchestra/testbench": "^9.6.1",
         "pestphp/pest": "^1.21",
         "pestphp/pest-plugin-faker": "^1.0",
         "pestphp/pest-plugin-laravel": "^1.1",