Bump symfony/event-dispatcher from 5.4.22 to 6.3.0 (#407)

Bumps [symfony/event-dispatcher](https://github.com/symfony/event-dispatcher) from 5.4.22 to 6.3.0.
- [Release notes](https://github.com/symfony/event-dispatcher/releases)
- [Changelog](https://github.com/symfony/event-dispatcher/blob/6.3/CHANGELOG.md)
- [Commits](symfony/event-dispatcher@v5.4.22...v6.3.0)

---
updated-dependencies:
- dependency-name: symfony/event-dispatcher
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

composer.json

@@ -45,7 +45,7 @@
         "symfony/config": "^6.2.7",
         "symfony/console": "^5.4.22",
         "symfony/dependency-injection": "^6.0.20",
-        "symfony/event-dispatcher": "^5.4",
+        "symfony/event-dispatcher": "^6.3",
         "symfony/expression-language": "^5.4.21",
         "symfony/filesystem": "^5.4.21",
         "symfony/finder": "^6.2.7",