Update phpunit/phpunit requirement from ^10.4.1 to ^10.4.2 (#147)

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/10.4.2/ChangeLog-10.4.md)
- [Commits](sebastianbergmann/phpunit@10.4.1...10.4.2)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

composer.json

@@ -19,7 +19,7 @@
   },
   "require-dev": {
     "doctrine/coding-standard": "^12.0",
-    "phpunit/phpunit": "^10.4.1",
+    "phpunit/phpunit": "^10.4.2",
     "psalm/plugin-phpunit": "^0.18.4",
     "vimeo/psalm": "^5.15"
   },