build(deps-dev): update symfony/phpunit-bridge requirement || ^8.0

Updates the requirements on [symfony/phpunit-bridge](https://github.com/symfony/phpunit-bridge) to permit the latest version.
- [Release notes](https://github.com/symfony/phpunit-bridge/releases)
- [Changelog](https://github.com/symfony/phpunit-bridge/blob/7.4/CHANGELOG.md)
- [Commits](symfony/phpunit-bridge@v7.3.0...v8.0.0)

---
updated-dependencies:
- dependency-name: symfony/phpunit-bridge
  dependency-version: 8.0.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

composer.json

@@ -42,7 +42,7 @@
     "symfony/flex": "^2.3",
     "symfony/framework-bundle": "^7.3",
     "symfony/monolog-bundle": "^3.7 || ^4.0",
-    "symfony/phpunit-bridge": "^7.3"
+    "symfony/phpunit-bridge": "^7.3 || ^8.0"
   },
   "autoload": {
     "psr-4": {