Remove paratest (does not support PHP 8.5)

Drop Pest 2.x constraint since it requires brianium/paratest
which does not support PHP 8.5.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: freekmurze

composer.json

@@ -35,7 +35,7 @@
     "require-dev": {
         "fakerphp/faker": "^1.9",
         "orchestra/testbench": "^8.0|^9.0|^10.0|^11.0",
-        "pestphp/pest": "^2.34|^3.7|^4.0"
+        "pestphp/pest": "^3.7|^4.0"
     },
     "autoload": {
         "psr-4": {