composer(deps-dev): bump ergebnis/phpunit-slow-test-detector

Bumps [ergebnis/phpunit-slow-test-detector](https://github.com/ergebnis/phpunit-slow-test-detector) from 2.22.2 to 2.23.0.
- [Release notes](https://github.com/ergebnis/phpunit-slow-test-detector/releases)
- [Changelog](https://github.com/ergebnis/phpunit-slow-test-detector/blob/main/CHANGELOG.md)
- [Commits](ergebnis/phpunit-slow-test-detector@2.22.2...2.23.0)

---
updated-dependencies:
- dependency-name: ergebnis/phpunit-slow-test-detector
  dependency-version: 2.23.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -28,7 +28,7 @@
     "ergebnis/composer-normalize": "^2.50.0",
     "ergebnis/license": "^2.7.0",
     "ergebnis/php-cs-fixer-config": "^6.57.1",
-    "ergebnis/phpunit-slow-test-detector": "^2.22.2",
+    "ergebnis/phpunit-slow-test-detector": "^2.23.0",
     "phpstan/extension-installer": "^1.4.3",
     "phpstan/phpstan": "^1.12.10",
     "phpstan/phpstan-deprecation-rules": "^1.2.1",