Update phpstan/phpstan requirement from ^1.10.59 to ^1.10.60

Updates the requirements on [phpstan/phpstan](https://github.com/phpstan/phpstan) to permit the latest version.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/1.11.x/CHANGELOG.md)
- [Commits](phpstan/phpstan@1.10.59...1.10.60)

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

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

composer.json

@@ -10,7 +10,7 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.51",
         "phpunit/phpunit": "^9.6.15",
-        "phpstan/phpstan": "^1.10.59",
+        "phpstan/phpstan": "^1.10.60",
         "rector/rector": "^1.0",
         "vimeo/psalm": "^5.22",
         "doctrine/data-fixtures": "^1.7",