Update phpunit/phpunit requirement from ^9.5 to ^9.5 || ^10.0

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/10.2.3/ChangeLog-10.2.md)
- [Commits](sebastianbergmann/phpunit@9.5.0...10.2.3)

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

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

composer.json

@@ -16,7 +16,7 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.8.0",
-        "phpunit/phpunit": "^9.5"
+        "phpunit/phpunit": "^9.5 || ^10.0"
     },
     "autoload": {
         "psr-4": {