Update phpunit/phpunit requirement from ^9.5.10 to ^11.4.1

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/11.4.1/ChangeLog-11.4.md)
- [Commits](sebastianbergmann/phpunit@9.5.10...11.4.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -33,7 +33,7 @@
         "ray/compiler": "^1.9.1"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5.10",
+        "phpunit/phpunit": "^11.4.1",
         "bamarni/composer-bin-plugin": "^1.8"
     },
     "autoload": {