composer(deps-dev): Bump phpstan/phpstan-phpunit from 2.0.15 to 2.0.16

Bumps [phpstan/phpstan-phpunit](https://github.com/phpstan/phpstan-phpunit) from 2.0.15 to 2.0.16.
- [Release notes](https://github.com/phpstan/phpstan-phpunit/releases)
- [Commits](phpstan/phpstan-phpunit@2.0.15...2.0.16)

---
updated-dependencies:
- dependency-name: phpstan/phpstan-phpunit
  dependency-version: 2.0.16
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

composer.json

@@ -34,7 +34,7 @@
     "phpstan/extension-installer": "^1.4.3",
     "phpstan/phpstan": "^2.1.37",
     "phpstan/phpstan-deprecation-rules": "^2.0.4",
-    "phpstan/phpstan-phpunit": "^2.0.15",
+    "phpstan/phpstan-phpunit": "^2.0.16",
     "phpstan/phpstan-strict-rules": "^2.0.10",
     "phpunit/phpunit": "^9.6.33",
     "rector/rector": "^2.3.6",