Update phpunit/phpunit requirement from ~10.3.0 || ~10.2.0 || ~10.1.0…

… to ^10.5.9

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/10.5.9/ChangeLog-10.5.md)
- [Commits](https://github.com/sebastianbergmann/phpunit/commits/10.5.9)

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

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

composer.json

@@ -57,7 +57,7 @@
       "phpstan/phpstan": "1.10.50",
       "phpstan/phpstan-phpunit": "^1.1.0",
       "phpstan/phpstan-strict-rules": "^1.2.0",
-      "phpunit/phpunit": "~10.3.0 || ~10.2.0 || ~10.1.0"
+      "phpunit/phpunit": "^10.5.9"
    },
    "autoload": {
       "psr-4": {