chore(deps-dev): update phpstan/phpstan requirement || ^2.0

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-version: 2.1.55
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -35,7 +35,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^10.5",
-        "phpstan/phpstan": "^1.11",
+        "phpstan/phpstan": "^1.11 || ^2.0",
         "friendsofphp/php-cs-fixer": "^3.59"
     },
     "autoload": {