Bump symfony/phpunit-bridge from 5.3.10 to 6.0.0

Bumps [symfony/phpunit-bridge](https://github.com/symfony/phpunit-bridge) from 5.3.10 to 6.0.0.
- [Release notes](https://github.com/symfony/phpunit-bridge/releases)
- [Changelog](https://github.com/symfony/phpunit-bridge/blob/5.3/CHANGELOG.md)
- [Commits](https://github.com/symfony/phpunit-bridge/compare/v5.3.10...v6.0.0)

---
updated-dependencies:
- dependency-name: symfony/phpunit-bridge
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

composer.json

@@ -111,7 +111,7 @@
         "phpstan/phpstan-phpunit": "^0.12",
         "phpstan/phpstan-symfony": "^0.12",
         "symfony/maker-bundle": "^1.18",
-        "symfony/phpunit-bridge": "~5.1"
+        "symfony/phpunit-bridge": "~6.0"
     },
     "suggest": {
         "ext-imagick": "To keep GIF animation when downloading image is enabled"