Update phpunit/phpunit requirement from ^10.5.8 to ^11.0.6

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/11.0.6/ChangeLog-11.0.md)
- [Commits](sebastianbergmann/phpunit@10.5.8...11.0.6)

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

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

Author: dependabot[bot]

composer.json

@@ -26,7 +26,7 @@
     "nikic/php-parser": "^5.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "^10.5.8",
+    "phpunit/phpunit": "^11.0.6",
     "tracy/tracy": "^2.10",
     "rector/rector": "^1.0",
     "rector/rector-php-parser": "^0.14.0"