Bump phpunit/phpunit from 12.5.8 to 12.5.22 (#34)

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 12.5.8 to 12.5.22.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/12.5.22/ChangeLog-12.5.md)
- [Commits](sebastianbergmann/phpunit@12.5.8...12.5.22)

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-version: 12.5.22
  dependency-type: direct:development
...

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

Author: dependabot[bot]

composer.json

@@ -6,7 +6,7 @@
   "require-dev": {
     "ergebnis/composer-normalize": "2.48.2",
     "phpstan/phpstan": "2.1.32",
-    "phpunit/phpunit": "12.5.8",
+    "phpunit/phpunit": "12.5.22",
     "squizlabs/php_codesniffer": "4.0.1"
   },
   "autoload": {