Update matthiasnoback/symfony-config-test requirement || ^5.0.0 (#464)

Updates the requirements on [matthiasnoback/symfony-config-test](https://github.com/matthiasnoback/SymfonyConfigTest) to permit the latest version.
- [Release notes](https://github.com/matthiasnoback/SymfonyConfigTest/releases)
- [Changelog](https://github.com/SymfonyTest/SymfonyConfigTest/blob/master/CHANGELOG.md)
- [Commits](SymfonyTest/SymfonyConfigTest@4.3.0...v5.0.0)

---
updated-dependencies:
- dependency-name: matthiasnoback/symfony-config-test
  dependency-type: direct:development
...

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

Author: dependabot[bot]

composer.json

@@ -121,7 +121,7 @@
         "blackfire/php-sdk": "^2.0",
         "ekino/phpstan-banned-code": "^1.0",
         "infection/infection": "^0.27",
-        "matthiasnoback/symfony-config-test": "^4.3.0",
+        "matthiasnoback/symfony-config-test": "^4.3.0 || ^5.0.0",
         "nyholm/psr7": "^1.5",
         "php-http/mock-client": "^1.5",
         "php-parallel-lint/php-parallel-lint": "^1.3",